Custom receiver mount basket bike rack combo

Don't know if it's custom, but you can usually find those cargo racks that fit in the receiver, with a receiver socket on the back of it......then just get a receive hitch bike rack to put into it.
I'd question just how much weight you will hold though? A few bikes would almost limit what you could put on the rack....and a generator would do the same as far as the bikes are concerned.

How about a front mount receiver hitch on the truck...then put the bikes or the generator up there??