Running a Kyosho Optima brushless?

[OptimaSwede]

Hi,

does anyone have experience with using a brushless set in an old Kyosho Optima?

Mine is the original one but with a full ball-bearing set and a OT-74 from a Turbo Optima.
It still has the standard chain-drive

I'm on the way to get myself a new ECU and motor so if it works, why not a brushless set? Still, I'm not interested in ruining the gearbox/gears/chain-drive.

Thankful for creative comments and information based on experience with an Optima or equivalent (Javelin etc.). Used brand, type, turns etc.

Best Regards