My 93 SI engine is at 155,000 now, it had only 85,000 when i bought it

Anyways, i feel it is about time to replace her, rather than put money into here...............although i have had only one repair--bad distributor--in 150,000....couple hundred bucks is not bad at all for an 11 year old car.
Anyways...thats just me rambling....does anyone know a REPUTABLE place to go to get a good used b16A2 In Washington State????
I want a clean engine with low miles from a place lots of other people have already dealt with.....
Thanks