i see you have no reads on UTG. in my 5nl experience, when a shortstacker limps then call a 3bet, he is pretty much on low PP and low connectors, not neceserally suited ones. this flop pretty much hits his range ...
his range pre , from i have seen these guys play like this is 22-99, 34-9T, Axs preflop, .... and he would call his all range here to a shove.

may be wrong, but i would c/f a big bet and c/c a small bet. c/f any blank turn for you