72 c30-starter, ps unit, drip edge sealer etc.

[fredico]

after getting the '72 c30 cheyenne super home, I came to the realization that:

1) the starter motor is acturally for a 350ci and the starter motor bracket and heat shield for the 402ci are missing.
2) the power steering pump is whining like a frustrated motor (bearings that is) and is in need of replacement. where can i find the belt routing information. It has ac too.
Sounds crazy but is there a supplier out there with parts (remfg or NOS) to keep this truck stock original. It's just to nice a truck to change.

3) the sealer that should be atop the cab drip edge can be chipped out on the passenger side and is going the same direction on the drivers side. i have looked in the service manual and have not found the GM product used back in the day. Don't necessarily need to use GM but this area will cause big troubles on the inside above the windshield if not fixed. Any suggestions?