lipo tray for rc boat big 3/4s 4000 mah + with strap slots

i printed in peg g i wanted it so i could slide battery's back and forth to alter c.o.g

bigger lipo tray will take a 5000 60-120c turnigy heavy duty 3 s as they are slightly wider
will take
Dimension: (L)144 + x (W)51 x (H)30mm+
if you require a boat for your lipo tray go here
https://www.thingiverse.com/thing:3058927

even bigger lipos tray will hold 2 x 6000 65-130c 170mmlong l 70mmwide