Look for a 4G93 1.8l twin cam motor. This will probably bolt straight in and be a better choice. You can get these from the cc gsr or proton satria GTi in NA form.
Else 4g63 NA can be had in Galants, hyundai sonata.
4g63 turbo in evo / vr4
Else look for maybe a mivec motor from a mirage