If i did send it to them they would find something to charge me for and if i dont pay they got the engine...thats what i have to lose. And i dont know if what they repair would be the right way.

X2
Seen this happen with cars and bikes for 50 years.
Not addressing MM specifically, but in the past once a shop has the engine back, the clock stops - it won't get any work unless they stop booking new work - the same reason it didn't get done on time. They'll find something wrong that's your fault and you have to ransom the engine back.

I noticed that MM's remarks didn't address all the issues you raised - like 150 psi at 12:1 CR...