@ Steponmebboom, I get it about the mast.Your response to my previous questions instilled that in me. I intend to be able to perform a decent daily inspection.And yes,after my purchase I will bring it to a tech for a thorough going over,boom wise.I'll find out what to keep an eye on for my particular mast and what parts to keep on hand to reduce down time.

Maybe you can give me some tips on what to look for,mast-wise.I can deal with typical parts changing,and expect that...I just don't want to overlook very serious flaws or fatigue.I'm talking about during the purchase process.

@roadtek,It's an IC truck I'm looking for.Yes,I'd like to stick with something that is known to be easy to work on and has parts easily available.

After some thought and some advice (some here),this is what I am looking for:

-Propane power
-3 stage mast
-pneumatic tires
-4000 pound capacity

I can't really go with a 5000 lb machine because I want to be able to tow it with my 5 ton trailer when I need to get it somewhere. I won't be moving anything around over a ton much anyhow.

I guess every manufacturer has made one with these specs,but 4000 pound machines are less plentiful than 5000 pound machines.