Thanks, fellas. Appreciate the compliments. All I did was pull out the checkbook. Ha.
smokehouse - I did the conversion on my previous '71 C10 Suburban without issue and had it checked out by a local shop. No issues, they were approving of the work, and the big roof-mounted tunnel a/c on the '71 blew COLD. Squarebody '78 has a bit different set up, but the conversion looks straightforward enough. If I run into trouble, the local shop knows what they're doing on these older GM trucks. I do appreciate the words of caution, though!
Tires. 6" rims. Grumble.
R