The Paasche H is a solid work horse. I have one, and using the small #1 tip, can do free hand camo on 1/72 armor, which should be detail enough for any of your needs. The same tip can spray a fairly wiide pattern for base coats, and if you build something enormous, like a 1/72 scale submarine, the #3 or #5 tips that come with the H Set can spray as wide a pattern as you need. It's easy to maintain, rugged and reliable.
Your prices seem kind of high. How to Ausie dollars compare to US? I know European currency goes a long way over here. Check out the prices at the US firm, DixieArt. I know international shipping would eat some of the discount, but they may be an option.
http://www.dixieart.com/HSet.html
Andy