I have a mechanic working on my '90 225 yamaha motor,he is replacing the Shift Shaft. He removed the powerhead,major headache he said took 2 people all day to torch bolts,some kind of body shop spreadder used,broke all bolts,needs new mounting plate,ect. Right now my bill is up to $3000 not counting tax or more parts.How much should this cost me , has anyone had this done? If so how long does this hold up plus should I be worried about powerhead or lower unit going next after the beating to free rusted bolts!Thinking about selling boat(1990 Proline W/A Cuddy) really like it,just dont know if I can trust repairs. I live in Tampa,Fl. area. Thanks Mark