The DOHC 1.8 litre Mazda Miata engine (also found in other Mazda series) should be a relatively inexpensive takeout in salvage yards, and parts are readily available. My '94 Miata, with 68,000 miles, has made several trips crosscountry and has been wonderfully reliable.
See
http://members.aol.com/solomiata/MX5Engine.html God's Peace to you.
d
Inliner #1450
