For carrying the bikes - your options really are:
1) Install a roof rack on the TV (yes, frightfully expensive)
2) Install a roof rack on the pop-up camper (but still, you should be using a brand name rack and spending a fortune)
3) Installing a rack above the tongue - there have been some pretty neat solutions fabricated here.
4) Hanging a rack from the back of the TV - still expensive as you should use a good brand, but less expensive than a roof rack. I used the Thule Raceway 3 with my Durango and Coleman popup and carried 3 bikes with it.
2018 Ram 3500 DRW/crew cab/long bed/4x4/4.10 gears pulling a 2017 Spartan 1245 by Prime Time
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| My family and I have fulltimed since June 2015