So here it is: a rebuild of the original pepperF1SH. Pretty much everything in this build is as Simon aka fishpepper suggests. I took the 10000kv motors instead of the 8000kv ones and i decided against ladybird props i favor of LKTR120 props. These are very similiar to the ladybirds but have the 1.5mm mounting hole. Since those original BR1103 motor wires are really crappy to solder and tend to break of easily, i changed them to silicone wires as per fishpepper's guide. Finally, i cut a whoop-style battery holder of some spare foam and glued it to the bottom, which works surprisingly well.
Photos
I love the multi-color motor wires! did you replace the full wire, starting at the motor base?
yes i did. these motors originally don't have proper motor wires. racerstar just used the wire from the windings and put shrink tube on it. there are really stiff, hard to solder and break of very often. so i replaced them right at the end of the windings with proper silicone wire.