[baltostar]

Pre-flop :
hero M = 2825/300 = 9.5 , 14 bb
villain M = 7683/300 = 25.5 , 38.5 bb

Flop :
hero M = 2225/300 = 7 , 11 bb
villain M = 7083/300 = 23.5 , 35.5 bb
pot M = 1500/300 = 5, 7.5 bb
pot/hero = 71%
pot/villain = 21%
hero/villain = 30%

Pre-flop: I shove this every time, but I think limping is viable. Non-push raising and folding are not viable.

As played: Unless he's a complete nit, villain's calling range is very wide. I shove this flop every time. You really can't afford to have M damaged further.

All other options involve making a lot of assumptions which perhaps could give you an edge if you had a higher M to play with, but here thinking too much is not justified. You have little maneuverability and you can not withstand further risk. It's a 2-rank board, shove it.