I created the motor mounts out of 3/4in PETG. I aligned the motors using an old xmod 130 can by snapping it into the stock location and then holding the 280s on the opposite side of the cage and hot gluing the PETG to the cage.
Shell mods were as simple as drilling 2 holes for the motors, drilling holes for the wiring to reach into the battery compartment and drilling holes for the relay in the battery cover. I gutted the inside of the battery compartment to make closing the cover easier. otherwise it took 10min of twisting wires so they did not get pinched and hold it open. The mods to the inside of the battery case are sub par and will not be shown for fear of embarrassment. All wiring was routed to the battery case so any problems should be accessible with a single screw. The relay is a $10 Autozone window motor relay (i believe) I can get a part number if anyone needs it. Just ask for a 4 pin rectangular accessory relay.
She buttoned up real nice. i already had to open it and resolder one connection to the relay.
Blue rings are after FIRST (10shots) test firing, I never fired this blaster once. When I saw what motors they had in them I immediatly started looking for one, it took almost 2 weeks and I went to 17 different walmart stores. I took the blaster apart the second I got it home. It took me another 2 weeks to find the motors I wanted. I put the project on hold to nerf in Cinci last weekend and gave away all my motors while down there, building the first superleggera for Twitch. His looks completely stock.
I do not have a lot of pics yet... it will come apart and go back together a few more times while I tinker.
here is my experimental trigger setup... it works better than expected so now I have to take it apart and wire it permanent.
this is the ONLY way to remove a metal press fit pinion. no prying, no heating and no cutting. we all have communities someone in your group needs to buy one...
Also try asking whomever you are buying your motors from to remove the pinons. alot of the ebay guys would be happy to. Ive pulled many pinions for people before I shipped. they let me keep the pinons so I dont even charge.