I'm a long time truck camper, and am now considering adding a fifth wheel to the mix. I was thinking toy hauler, but only because my wife and I each have bicycles. I know a toy hauler might be overk...
I added a receiver to the front of my truck. The front hitch mount was bolt on and was very easy to install. It has a 2inch receiver and then I bought a hitch mounted bike rack. It does not block the radiator because if you look at your bikd from the side, there is a lot of "open" area. It does not block my view either.