Thanks Sparky!
I was thinking about getting 3. 2 for the front and one for the spare. Just called MarlinCrawler. For 3 of them, they said $145 shipped <img src="/forums/images/graemlins/scared.gif" alt="" /> Dayum, 6061 billet is pricey. I remember when you could buy a set of four for around $100.
May have to drop back and punt on this. May take the longer bolt route you suggest, Sparky. And skip the front ones altogether.

Fasteddy's advice is occasionally sound...