Hi andrew_j ) and everyone else who has weighed in on the issue. We had the car towed to our Honda mechanic friend yesterday and, once he took at look at the inside of the engine, agreed with our decision to replace the engine. The car was working when the belt broke. Fortunately, my husband was not on the highway and was able to coast to a side street. The Honda tech searched for an engine at the same company used by the Honda dealership where he works and he was able to find a '95 engine with 75K (10K less than one we had found). Yes, it is an automatic transmission. It is my husband’s work car (40 mi/day roundtrip)–we live in Houston where everything is at least that distance roundtrip. 
We just need our '95 to last at least a couple or so more years until we decide we want to buy a new one. The rest of the car is fine.
As far as engine models, our friend said engines through 1997 would fit; however, as you have pointed out, andrew_j, it would require the additional sensors, etc.