Crew Cab Issues: Sell or Fix

[crews]

Ok heres the deal- For those of you that know me, please excuse the momentary lapse of reason. Those that do not- please feel free to beat on me:
The truck in question is my 72 GMC C2500 Crew Cab. It is loaded with a 402/ turbo 400; P/S; PDB; Leaf rear; 3:54 gears; aftermarket AC ( it is removed) Ohcre / white two tone with the deluxe trim level.
I have only personally seen three of these trucks in my travels and the other two were Chevrolets. I have never seen a GMC, nor have I ever seen a factory Big Block Crew Cab. I have the original owners manual as well as the protect-o-plate for the truck.
I am fairly confident in stating that this is
an extremely rare truck. I would say it is one of a handful of these that may have ever existed. I know if I sell it, I will never find another.
I have owned the Crew Cab since 2000. It has been in "hibernation" for a number of years due to my business venture that failed. Upon it's return to my immediate possession, I have noticed that it has deteriorated to a new level of dis-repair.
I am at a point where I am unsure if I can fix the truck myself. The cab has some serious rust issues that are going to take a lot of welding and fab work to complete. I have two donor cabs for the sheetmetal that I need. Unfortunately space is limited at my house to perform the necessary repairs. The other thing that is limited at my house is *time*...I just don't know if I have the time to give the truck the attention it deserves. All of this begs the question, why did I buy it back? Well a very good friend and board member was holding it for me and I did not want to go back on my word to him.

My intentions have always been to make the truck into a crew cab dually ( I have the step side fenders in the basement) But with each passing day, my patience and enthusiasm diminishes a little more. I am starting to face the reality that I may be way out of my realm of ability when it comes to this truck.

So do I sell it and purchase a truck that I can use as is?

Or do I suck it up and stick with this truck since I have wanted one all of my life?