Holy cow, I'll marry you... Ok, maybe not - but that's some wedding gift, beats the heck out of a ring! But something tells me you're probably on the hook for that too. That's how it goes - but she sounds like a keeper. As does the spousal unit. She got any sisters?!
Here's a long step on ebay (for pics of what they look like anyway).
http://cgi.ebay.com/ebaymotors/1965-...6b582d54#v4-38
Here's another
http://cgi.ebay.com/ebaymotors/1966-...item33707c6eaf
most long-steps were 3/4 ton, as is yoru truck, so that's a benny.
I have to admit that it's (long step) not my "fave" when it comes to these trucks' available body styles. I don't want to offend, but to me, it's kinda like a giraffe with short legs, or a dachshund with long ones, I'm not sure which. But some folks really like JUST that body style - so it's only a matter of opinion - and that was just mine - worth absolute zippo. I'm not certain what problems you might run into when swapping a long step onto a long fleetside chassis - it "should" work just fine because the chassis is the same - I'd say the challenge would be making sure you get all the nit-noids of the stepside when you get it - i.e. tail lights, wiring sockets, bulbs, etc to make the transition easier. I'm just spit-ballin here, but if yer ballnchain2b is cool with it - might just let her have it as a fleetside first and see if it grows on her... Either way, you're a hero in her eyes (and all of ours!)