Baron, the starter of this thread is located in the US, and from your profile i take you are located in switzerland. Shipping one way for an entire plane is in the 500 euros and up region. That makes over a thousand euros just for shipping it back and forth...

Ask at a local car and body shop if they will do it at a reasonable price. My guess is it will run quite a bit cheaper than shipping it back and forth, plus there is no danger to damage it on the transportation way. Another option is to paint the basic colors yourself, apply the decals, and then have it finished at the automotive painter (clear only).
Also you could ask Franz Walti of switzerland. His finishes are always superb...

There are several cockpits available for the Liebetrau F-5. Try a forum search here on RCU. They were running about $450 and up, and all looked pretty good. Killer cockpits is one of the names that flashes my mind....

I might be able to help you out with decals. What scheme are you planning on putting on your F-5?

Best regards
Hank