Pintle Hitch? Do you have exp. towing a Blazer?

[harestream]

Hello airstreamers. I have been shopping around on the internet waiting for the right tow vehicle to come around in my price range. and i think i might of found it. Do any of you have experience towing rigs with a Blazer? I have a 25' Tradewind, and loaded it should weigh out at around 5,500 lbs. The Blazer we are looking at on Sat is a k10 4x4 Military "cucv" 6.2 Diesel Turbo 400. It has a Pintle Hitch, and I'm not familar with what exactly that is, but the current owner tells me that this car was made to pull cannons. Will I still need a receiver hitch? I have already a fixture/mount with an attached ball hitch that goes into a receiver. The current owner seems to think I'll need to buy is some sort of adapter which will cost me 50 bucks. Is this what I already have? Does this sound right?

Apparently the Military Blazer pulls an extra half ton more than the consumer version, so he seemed to think pulling the airstream wouldnt be a problem at all. My main concern is the size of the wheel base. I've been told to look out for this, because if its short then it's not suitable for towing. How do I know what is short. I asked the urrent owner about this and he didn't know what I was talking about. Is this something I can measure myself when I see it in person? In the research I've done online it seems like there is a c-5 and the k-10. I think the c-5 are the ones with a short wheel base? not the k-10s? Somebody please clarify this for me? Here are some photos attached to show the current hitch situation. I hope you are able to make sense of this. Thanks for all oh your help.
-Kelly