needing a new(used) motor

[imported_roy]

I have a Volvo Penta 130 that I bought at the beginning of August. I asked alot of questions on here and got alot of good advice. Unfortunately, my problem was much worse than I or anyone thought. It seems that my number 4 piston is burned up. So now it comes down to do I rebuild or try to find another used one to replace it with? So far the cost of rebuilding is more than I paid for the rig. But I'm worried that putting another motor in will lead to more problems. Any advice or help? Thanks in advance!!!