I had the exact same trailer for about a year. Mine was "Rockwood" branded but both "Fleetwood" and "Rockwood" made by same Forest River plant. I sold it to convert a cargo trailer into a toyhauler, primarily becasue I got tired of folding up in the rain and having to dry everything out.
2 bikes will fit on the deck sideways, but you'll need to leave one of the ramps/sides behind (deck is only 7' wide, which is long enough to have both wheels supported by the deck, but not enough to have both sides on without angling the bike). The back wheels will hand over the side of trailer about 6" or so (about what your mirrors stick out, but something to keep in mind in tight spots). 3 bikes could fit if you put the middle one backwards.
If you're interested in this to reduce loading height, keep in mind that the deck height on this trailer is nearly as tall (if not taller) than a truck bed. Because of their marketing decision to make the trailer "off road ready" the deck winds up really high.
Watch your tongue weight on these. I never believed the published tongue weight of 250-lbs on this, because this trailer with the deck empty would drop the read end of my Silverado at least twice as much as my 235-lb mass standing on the hitch ball. I don't know if the tongue weight includes the propane tank(s) or battery, since it doesn't come from the factory with those. With 1 bike and a little firewood (maybe 100-lbs) it would realy drop the back of my truck.
I would be very careful hauling anything on the top of the camper. I talked to my dealer about installing a TV mount on the ceiling, and he showed me what the roofs are made of, and it's really just some styrofoam sandwiched between some FRP, with minimal strategic supports for the A/C. Anything palced directly on the roof will cause damage. The sides of the roof are plywood, so you could anchor a rack to the sides with a bar spanning across the top to hold a boat, but I don't know if I'd be comfortable doing so (a little slip while loading could require and expensive repair