I have a 92 Dodge Spirit. Bought in 1993 (former rental car) with
17,000 miles. Now has 107,000 miles. 2.5 liter engine. Had good luck with car until about 100,000 miles. Since then have had to replace oxygen sensor at 101,000, and head gasket (including resurfacing cylinder head), timing belt, and water pump at 105,000. Car now has a blow by on cylinder number 4 and will need piston and rings at a minimum according to the mechanic who diagnosed it (not the same mechanic who did the other work). I'm debating whether to junk the car, have needed repairs made, or have a used engine or new short block put in. Any suggestions?