U can try to mount the esc next to the motor. There is some space there. Use an L profile (thin one will do, mine is only 1.5mm thick) or just tie to the tvp. I'm sure u can figure something out.
Well done & do post more update soon.
Regards,
Joe Ling
Hyper 9e Medusa 4S, Savage 5S MMM 8XL, Jammin' 4S Neu MMM, X2 Ninja JX, X2 MMM 5S Neu, E REVO Medusa 6S