KEITH - Tough to find exh. tubing that small. Most places like muffler shops & auto parts stores start at 1-1/2".
Prior owner of my 982 used plumbing drain pipe to make twin exhaust tips on the dual mufflers. No clamp, just a small sheet metal screw holds them onto the muffler outlets. They don't rattle and have never come off. For your bend, you might try the hose clamp, and a sheet metal screw, or maybe a regular muffler clamp, might almost have to look at a motorcycle shop for one that small, or else here;
http://www.waltstractors.com/acatalog/Walt_s_Tractor_Parts_Plain_Finish_Muffler_Clamps_1357.html
For plain muffler tubing, this is probably your best bet.
http://secure.chassisshop.com/partlist/6210/ But good luck finding a muffler shop to mandrel bend it! Most won't have dies that small.
When I was looking for some 1-1/4" or 1-3/8" tubing several years ago I ended buying a "J-bend" in 1-1/2" dia. from aluminized steel from SUMMIT,
http://www.summitracing.com/parts/sum-621001 Made a GREAT straight pipe!
SCOTT - IH had a pretty good reason for doing EVERYTHING the way they did. They'd learned what to do and what NOT to do in the 50+ years before these CC's were made. I've seen too many precision designed machines, precision machined parts, assembled over paint runs and the whole alignment of the machine screwed up in the process. If your CC is a trailer queen, it probably doesn't matter, but if you use it you want it to run right. IH also did things efficiently and economically, and ONLY Once! Things like chassis grounds have to have bare metal-to-metal contact. Things like radiator & hyd. hoses were painted, but radiators were not. Even bar type axles where wheels had to clamp securely onto them were not painted. Ohhh.. and painting V-belt grooves is NOT recommended, remove the belt and mask the grooves off on the pulleys.
Proper surface prep and cleanliness are important to a good paint job. And watch out for over-spray if you spray the paint. That's why I use some thinned-down paint and a small trim paint brush for some things. Paint only goes where I put it, not everywhere.
Wish it wasn't ten degrees & 10-15 MPH winds here. I've got a CC 70 in pieces to paint too!