First, you have a very rare UE Lightning chassis, but why are you not using the UE Lightning Chassis Braces made specifically for that chassis?
If I remember correctly, the Thunder and Lightning chassis share the same braces.
T-bro, here's a pic of the setback arms and monoblock which lenghtened my chassis substantially:
Castle Neu 1520 on 6S LiPo Powered Gmaxx (Nitro Killer)
Predator with OS .21TM
Supermaxx with Mach .26
Revo with OS .18TZ
Kyosho ST-RR Conversion
Ofna CR with Tekin ESC/Motor (2)