ijamofasta

i want to make a LAN centered build in a 50 cal ammo can but am hopeing to give some old teck a new lease on life i am hopeing to find a few old dell hp acer oem/aio to use as parts but i've had a hard time finding motherboard sizes from those manufactures ammo can is 7 x 11 x 5.5 inch er 17 x 28 x 14 cm let me know what ideas you all have