323~!

i take the 323.

94 should be the 1.8L dohc. pretty reliable engine, same as the 1.8 miata. tons of parts around if u going to fix anything. Its 5 years younger.

the 89 civic is a carb or sohc engine (not sure coz of the year)

Any of them hatchbacks? go for practicality.

MX-6 is not fast. and not anything of a keeper. Save the money for things u need to fix down the row. or for gas money