Scott, Forward Air, whom is not a trucking company, does not require a crate. You can go to their website (check Google) and find out the airports they serve. I'm pretty sure they serve Denver, I got a Wayne 60 from a guy who used Forward Air out of Denver. I have not yet heard of any damage problems from them.
What happens is you bolt the pump to a pallet, wrap the pump with cardboard and that's it. It's also cheaper than trucking. On the OPP from here (Wilmington NC) to Detroit, trucking would've been $375, Forward Air was only $250.
Take care Scott, I hope this helps!
Neal