Having owned a few pop-up campers as well as caps/toppers/canopies/whatever I'll just say this: it doesn't matter what you buy as far as putting your bikes etc inside (they WILL fit in a camper), either way, your going to be moving them out for the cooking, eating, sleeping times.
Personally I'd rather move the bikes or 'yaks out and then grab a cold one out of my fridge and sit at a table with the furnace on, then roll into a nice comfy bed, and make breakfast at the stove when it's pissing down rain in the morning than crawl into a metal box over my tailgate. Others however, may prefer to grovel...