I saw this at Bob HS in Orlando fl a couple of days ago with the square firewall recessed in maybe an 1/8 inch in and a couple of laser cut 1/8 ply
for different electric setups all you need to do is cut an other square ply blank to hold an engine mount and epoxy it in area for tank looks good
no hacking out a battery tray, should be as easy to install a glow as setting up as the electric just a tank and one more servo for throttle , I have a
K and B 20 with a davis diesel head also an irvine 25 red MRKlll diesel conversion if it needs more a ST 34 Davis head MARTIN

SOME TRI STOCK A COUPLE OF 1/8 PLY GUSSETS SHOULD BE SLAM DUNK