Hey, glad to see our deck is awakening curiosity heheh
Well, I started testing the deck as soon as Gifts were unrestricted (Jan 2015 I think), made top8 that same month and since then Antoni and I have played the deck throughout the year (in his case much more positively than mine  ). When t4k was also unrestricted we made some changes in the deck, the card fit perfectly but we had to make room for it (in that point Jace tms leaved the deck). We are good friends and we live in the same town so was quite easy to test it together and exchange opinions and our different points of view, finally got a list which have not changed since then (except for some sb options).

Regarding Gifts piles, I think it's impossible to give an standard list since there are so many different situations in every game during a tournament. Just to give some examples, for winning piles...lotus noxious will snap, vault key will noxious, tinker walk tezz noxious...and so on, always depending on your mana availability, or opponent's deck, and many other factors. It's also common keep a tutor in hand (or tolarian) and make the pile around them. Everything becomes easier if Noxious is already in hand, or Will...
You can also go for card advantage pile, typical one is recall noxious snapcaster and anything else that you could need to defend it, maybe a mental misstep or another counterspell, put a bomb in this pile instead of the counter could be also a good idea depending on your hand.
Sometimes you may need more counters, fow drain misdirection and fluster could be ok (spoiler! we are testing one copy of overwhelming denial  ).

The card's versatility is what makes it good and complex at the same time. Imho Gift Ungiven is an amazing card, and especially in this deck which is completely built around it. It offers solutions for lots of different situations, and perfectly played, as in the case of Antoni, this deck undoubtedly becomes a Tier1 as he had proved winning both regular and finals, playing the deck in 11 of the 12 tournaments.

Regarding sideboard, would be easier to answer with specific matchups doubts 

Edu Medrano was the budget winner with his Noble Fish with a 4-2, beating 3 MUD's and a UR deck.

Hi! After a couple of years reading and following TMD I've decided to register and try to contribute as much as possible as a LCV player.

I'm a teammate of Eduardo Medrano and José Romero, White Trash Budget and GW players, and yes, this last month I've suffered a lot during the testings...very tough decks to play against with.

Eduardo has been at the gates of top 8 in the last 4 big tournaments, 3 LCV and BOM. He lost the last round at BOM when he was 6-1-1 playing for the top 8, but anyway finished as the 1st budget deck. He's becoming a real expert pilot with this deck, and one more time it has been demonstrated that it's possible to achieve good results in Vintage with a budget deck.

Regarding José and his GW (RUAVIEJA's Hate Deck ), we "designed" the decklist during last month, trying to make a deck specially thought to beat the LCV's metagame. During the testings we saw a lot of things that we liked, specially the fantastic pairing against MUD and combo/control decks, and the huge capability of destroying opponent's mana source and killing them at the same time.

A very short report of the last LCV:

ROUND 1 - MUD 2-0 On the draw
ROUND 2 - MUD 2-0 On the draw
ROUND 3 - DRAGON 2-0 On the play
ROUND 4 - GOLDEN OATH 2-0 On the draw
5 AND 6 ID
TOP 8 - BURNING LONG 2-0 On the play
TOP 4 - DRAGON 0-2 On the play (a nice top deck of the dragon player in game 1 , and mulligan to 6 with a very soft hand for GW in game 2)

Yes...he didn't lose any game until the top 4, where the luck wasn't on his side.

Regarding the 2 Moxen/Lotus. The possibility of starting a game with a thalia on the table, or a stony silence, or two critters, or if you're on the draw use a wasteland and play a Noble at the same turn...José had no doubts about them, power9 gives you an explosivity in turn 1 that uses to decide a game, and it's true that sometimes they're a dead draw, but it gives you so much more than it takes.
And finally, Mental Misstep aren't on the list basically because of the lack of slots heheh