Hand 1 I'd often just shove pre w/TT+ AK and AQs. The fact that he minraises UTG seems like he doesn't have a very good ss strategy to me. I think a lot of shorties just want to gamble it up and will call with the range below and often even wider. If we call its gonna be hard to get his stack oop imo unless we hit a T and he hits an overcard. I guess since he's unknown it makes it a little more difficult but he's still a ss minraising UTG. Another option might be to be willing to get it in on any flop if he's one of those bluffy spewy short stackers but again he's unknown.
BTW I wouldn't do this vs most known, tight ssers.

equity win tie pots won pots tied
Hand 0: 60.663% 60.07% 00.59% 931876800 9223578.00 { TT }
Hand 1: 39.337% 38.74% 00.59% 601023468 9223578.00 { 22+, A9s+, KQs, T9s, ATo+, J8o }

Hand 2 ya I fold.