You're pretty much right on all points. I wouldn't really be fostering discussion if the lists I posted were all perfect from the get-go. (The sideboard listed has only 14 cards, by the way

)
The only one I'd debate is Consult. I used to like it a lot, but after playing a lot of games with Serum Powder, I found that a lot of times, it was either riskier than I wanted, or resulted in me losing, which is obviously not good. It also is really bad at finding sideboard cards; this deck also really likes to dig for Black Lotus, which Consult can do, but... I guess I've just soured on it. If anything, I might suggest Enlightened Tutor since it finds all the combo cards and Black Lotus.
This is probably what I'd suggest playing, taking into account TFK - I had not thought of including it before, but it does make sense. I'd probably play either that or Enlightened Tutor.
Two-Card Monte 2011
4 Serum Powder
4 Leyline of the Void
4 Helm of Obedience
3 Painter’s Servant
3 Grindstone
4 Goblin Welder
1 Ancient Grudge
1 Wheel of Fortune
1 Memory Jar
1 Tinker
1 Vampiric Tutor
1 Demonic Tutor
1 Gifts Ungiven
1 Intuition
3 Mox Opal
1 Black Lotus
1 Sol Ring
1 Mana Crypt
1 Mana Vault
1 Mox Jet
1 Mox Sapphire
1 Mox Emerald
1 Mox Ruby
1 Mox Pearl
4 Mishra’s Workshop
4 Ancient Tomb
4 City of Brass
2 Gemstone Mine
1 Tolarian Academy
1 Myr Battlesphere
1 Ancestral Recall
1 Enlightened Tutor / TFK
SB: 4 Dark Confidant
SB: 2 Red Elemental Blast
SB: 1 Relic of Progenitus
SB: 2 Pithing Needle
SB: 1 Ancient Grudge
SB: 2 Nature's Claim
SB: 1 Sundering Titan
SB: 1 Balance
SB: 1 Pyroblast