Hmm..what were you interested in..?
the bodyshells\weight breaks are completely different, but th drive trains basically th same..BTW 89 is technically MKII the rounder shape (SF) yours is a SA
If you get the 1320cc barina engine from SA series (rare but possible) you can offset ground the crank rod journals to give a 1490cc capacity....or put a G16 bottom end under your head..but of course th G13B twincam has the strongest crank....so Supercharge it, fit Cultus 11:1 pistons or turbocharge it..common to turbo, but thats for a good reason....and styling wise, there are clear taillights from 883racing in th UK..and try th new swift for badges, if you are chrome inclined.....
Bewitched