Sten:

I'm in the middle of the same process you're in right now. You need to determine whether you have a 400 or 400A. Then you need to determine which year it is. I've got a non-working 400 pre 1968 model which is COMPLETELY different than the later model.

Availability is another problem. If you have a post 1968 model, which you almost surely do, then I've got a source for you at a very good cost. E-mail me and I'll put you in touch with the guy. I couldn't use the one he has for sale because it wasn't the right model for my bird.

I'm also debating about putting in an S-TEC and just being done with it. But then again, $$$. However, if I could find a reasonably priced 400 computer, then it's worth it for me to at least try and see if I can make it work for awhile. On the flip side, the thought of not hand flying on every 2-3 hour trip I make each week is starting to sound pretty appealing to me

Let me know if I can help.

Keven
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Festique