If only Helm was tutor-able with Trinket Mage. Otherwise you could make a fun Sensei-Sensei with uncounterable Magus of the Future and Trinket Mages with Cavern of Souls.
Fun idea.
That deck exists and it Top4'ed Vintage Champs on MTGO piloted by TMD'er Chubby Rain. But that kills with storm.
This is a bad win condition for that deck, I think. If you don't have Magus out and you're going for the Top+Top win, a simple Misstep will not only ruin your combo, but if the opponent has access to Will, this will win the game for him in a major way.
And if you're going the Magus+Top route, you'll probably deck yourself before decking your opponent... Lab Maniac would probably be better as an alternate win con.