I think you are right that
madcap Experiment would enable the combo faster, the problem however is that the deck only runs 2x4 artifacts and you could end up sending most of your removal to the bottom of the deck. Where
contingency plan allows you to choose what cards to send away, while still doing almost the same thing. Another option would be
Glint-Nest Crane, which has a simmilar effect, but also grants a blocker against agressive decks.