98 Subaru engine needed

I hope someone can answer me this question. I just bought a 98 Subaru outback (
legacy) and the family/friends had it checked before sale as check engine light was on.
I drove it and it died. I had it towed to a mechanic who said that the last mechanic who
worked on it did not change oil or started and stopped as it was only a check. Long
story short a rod shot through the engine block. My mechanic was sure Subaru would
handle it through there liability insurance but they are not making it easy, so to get to
my point while I am waiting for them to do as they should I am going to put in another
engine ( used with hopefully low mileage ) Anyway I am having a very difficult time
figure out what years are compatible. It is a 2.5 but I know with some adjustments a
2.2 could work I am just not sure what years will work? I assume others than just 98.
Any help would be greatly appreciated. Thanks Katherine. ( also low mileage to me is
170,000 or around there and was wondering about what I should be looking to pay, so i
dont get ripped off) Thanks again, i hope someone out there can help. ( sorry it says
my name is John, my name is actually kate. I just don;t have a facebook account so a
friend let me borrow his to post this. I really hope someone out there knows......or
better yet someone in Spokane Wa with a match ( one a million but worth throwing it
out there)