Jim.....I rebuilt a Hotshot couple of years back because I had happy memories of one being good indoors back in the day. I ran it at a Batley Xmas meeting, it was terrible..
...probably not set up right and with a slow, brushed motor.! It's hiding in the loft now..
When I tried the Tamiya Topforce a couple of years before that, it was much better..! That's also in the loft.!
If you want to run vintage, can't beat the RC10....
Not a bad idea about Cully though..