i say the bottom deck is the best of the 3
Budget Delver
4 AEther Adept
4 Delver of Secrets
4 Invisible Stalker
Creatures [12]
2 Forbidden Alchemy
3 Gitaxian Probe
4 Mana Leak
4 Ponder
4 Runechanter's Pike
3 Silver-Inlaid Dagger
2 Thought Scour
4 Vapor Snag
Spells [26]
22 Island
the main issue with this build is it is missing utility land Moorland Haunt, which allows you to make a flying dude at the end of your oppents turn.Only issue with that is youneed to spruse the mana base, probably looking at getting 4 glacial fortress,3 morrland haunts and then 10 islands 5 plains. this whit mana productions also allows you to have some cards in side board that will help against certain match ups.
For the sideboard i'd say look for flash freeze to side out mana leaks against wolf run, mono-green and reddeck win decks, 3 negates against the mirror matches and contols and some sort of life gain for slower matches, butcher's cleaver offt the top of the head but there would be others.
now for white cards in side board i would suggest revoke existance for exiling artifacts and enchanments, celestial purge exiles black and red permenants.
but i would say the main thing would be to either sleeve up these different decks and proxy cards you don't have first to see how they play against your friends standards and see what works for you