Hi,
You have the origional Heim bell 222. Circa early 1980's. They were expensive at the time.... but probably the best flying models of their time.
I have the same model. I need to resurect mine as well. Spares are hard to come by.... let me know if you find a place who has parts. I have a few parts.... let me know what you need and i will let you know if i can spare some of my spares.....
Here is a cool link I just found today.... Actually... this is weird... for some strange reason I became interested in flying mine again ...just this morning.. so i began looking around....
the link:
http://www.vrhc.co.uk/RC%20Helicopte.../Heim/Heim.htm
Rich