Just set them in.
The wheel base is short enough to have them set like that and by having them face opposite the wheels tucked in and I was able to close the tail gate. Standard size bed, anybody should be able to do it. Strap 'em down, for sure!!! Blaster are only about 300# and you only have to lift half at a time. I guess not giving a damn about the paint on the bed is a requirement, too.
A