ben, if you saw the parts prices of German cars you wouldn't want one. Especially over an EA... Jap cars are a good compromise, and if you need any help I should be able to assist.
But it's worth thinking about whether you are happy with the EA. The problems you mentioned didn't sound particularly expensive, and in addition to the expense of upgrading to a newer car, you'd probably have niggly problems which would be more costly to fix. But, of course, you'd have a much more modern car that you'd possibly enjoy owning more.
So take your time and give it some thought.
Jack Travis, E-Series Acting President
1989 Ford Fairmont Ghia turbo/GL replica (underway)
1994 Eunos 800M
1990 Ford Laser S