I recently acquired a nice '96 F-250 4x4 for cheap, and my wife and I are considering buying an affordable used camper. The truck is a HD 3/4 ton long bed, but it does not have any sort of attachment points for the tie downs. What are the pros and cons of the various types? The kind that drop into the existing stake holes and secure with a bolt look simple enough and I am seeing them used on Craigslist for $40 a set. The ones that bolt to the frame under the bed are spendier. I'd like to keep it simple and avoid drilling holes in sheet metal if possible. This will be the first camper I have ever owned. Opinions?