Alain: I am glad you are going with a trailer. A low trailer is very easy to get the bike onto and secure. While a pickup works fine, sometimes it is a chore to find a loading dock and hope the truck and dock mate up OK.
As you saw in ES last year, I have a low trailer with a mesh gate and just ride the bikes up the ramp into the front wheel chocks and strap them in. While the trailer is not motorcycle specific, it works great. The trailer really comes in handy for hauling just about anything.
As far as pulling a small trailer with just one bike on board Alain, don't worry too much about hp to pull it. Does your Rave have a hitch? Just brake a little sooner. Bob