The Peak C-5 is another good quality clone of the Japanese general purpose airbrush. Same design as Rich AB-300, Iwata HP-C or Olympos HP-100C. The Grex XG is another.
The Peak probably has rubber o-ring needle packing, so leaving it in brake fluid isn't recommended.
I've owned them all, and never had any real problem keeping them clean. I used to tear them down completly, but has even stopped doing that. With proper cleaning procedure, they should be manageable for anyone.
After you finish your painting session:
• Pour out all paint leftovers, and clean out as much as possible with thinner of choice and a brush and q-tip. Cup and nozzle cap.
• Spray thinner until clear. Cycle the mechanism several times.
• Backflush with thinner until clear.
• Repeat these two steps a couple of times, replacing the thinner as it gets dirty.
• Remove the needle and clean it if necessary.
• If you feel like it, flush and backflush again.
Doing this, I havn't had to disassemble any of my airbrushes the last years.
Another trick is to wax the airbrush and it's parts with silicon free car wax. Both lubricates and makes the paint less prone to stick to the metal surfaces.