there like $30-$33 each arm complete with everything. we have a bunch of extra plastic parts coming, i'll push him to get some of those too offer
I prefer the all in one package the disco pro offers. am also stepping up to a backbone gopro hero3+ mod to run better glass on the heros.... this ones going straight for sale as a complete kit ready to film.....
yes, the disco frames are still everywhere and a viable option. frame, $80, core $80, gimbal = about what an all in disco pro costs
Getfpv.com has regular discos in stock, same with core.