You might want to take a look at the Pullrite 20,500#er. It's very compact, yet sturdy. The four way swivel head seperates from the pyramid base for easy removel. The bed mounting rails are flat so as not to interfer with normal pickup operations.
Got mine from Camping World for $575 with PC discount and $50 off coupon. I think CW is discontinuing the Pullrite line so you should be able to get a good deal.
Pullrite's customer service is top notch! Called them on two occassions and they always returned my calls.
If you decide to get one BE SURE TO GET THE CUSTOM BRACKETS FOR THE RAM FRAME. They are longer than the generic brackets so you will have more lattitude in positioning the mount.
Finally, who ever installs what ever mount you chose, be sure to tell them NOT TO DRILL ANY HOLES IN THE TRUCK FRAME EITHER IN OR WITHIN 1. 5" OF THE TOP OR BOTTOM FLANGES.
Ron.
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'00,2500,4x4,QC,LB,6spd,3. 54,4wABS,Camper-Trailer packs,BD Brake,Pullrite 20. 5K 5hitch,Tekonsha EnvoySV,CobraCB,Flame Red/Silver.