Another thing to think about...

You didn't say whether or not you live in the US or not.

If you do and you swap out the motor with an import motor,
where you plan on buying service parts for it?
You can't buy them at a US dealer.

1995 Trooper LS auto 3.2 DOHC /w SOHC intake
1989 Trooper 2.6 auto
1989 I-Mark RS DOHC 1.6
1991 Stylus XS DOHC 1.8