Bart,

If you still have time and feel uncomfortable about the radiator condition... Take it to a radiator shop. They will pull the tanks and will rod out the core cleaning all of the cooling tubes. When you put it back together, just fill the radiator and when the engine gets up to temperature, the thermostat will open and you will need to top it off again. Should cost no more than ~$100 (at least in this part of the country). If you don't have time, it will only cost you another $40-$70 to have the shop take it out and do the work later on.

If you can't find the torque specs, crank it down. you may want to use a small amount of loctite blue. Here is a rough guide. Note that fine threaded bolts withstand higher torque values than rough threads.

http://dodgeram.org/tech/specs/bolts/M_bolts.html

There is some debate if the engine is an interference of non-interference but searching on the subject, Tone (RIP) posted that our engine is a non interference engine. That's good enough for me. You should not have any valve to piston contact even if the timing is off.

You might want to read this post and give a second thought to starting up the engine before you get it all back together. It can't hurt and may save you an additional teardown to get it right.

http://www.vehicross.info/forums/showthread.php?t=8070

John