Wow, The Schluter HeliBoy - now that brings back memories.

What is your budget?

I am asuming you do not have a radio or gyro?

Would you still be looking at a possible nitro bird?

As the bigger the better for stability in any era.

But comparing different eras, my Century 30 nitro Hawk Pro flies a lot better then even my 60 sized Schluter Champion did.