M_Boats: Adjustable Motor Mount

Hi all, Finally got my tow vehicle. I will be picking up "Tip" in the next couple of weeks and bringing her down to SF. A little practice on the strings and maybe, just maybe I'll get in a little sail time (nice concept). Some time ago I was considering an adjustable motor mount. At the time, someone mentioned a good brand. I printed and saved that post and filed it away so as to never loose it and of course have forgotten where it's filed. Questions: 1. What brand, and model number to use to make sure I've got a real solid mount? 2. Is the short shaft the correct model of OB to use? 3. Is an aluminum backing plate recommended when installing the mount? Thanks, Bill M-17 "Tipperary #496