1977 "1300" RUST FREE, was a Abarth rep.

Had this for a few years now, was a Abarth rep in the 90`s, I then restored it over four years MID 00' used it all year round for a couple of years, was fitted with a roll cage (still have the cage) and bucket seats and is MSA logged booked for Sprints etc, removed the roll cage and bucket seats and put normal seats in as was using it on the road, fitted with a 1500 fast road cam, 5 speed box, 1500 rear suspension. All filler was removed and replaced with lots and lots of new panels. and not much filler!! No thick rust profing etc what you see is what you get a very honest car! This photos where takin in 2007, and was put in a garage in 2009/10 and has been there ever seince, (I had a 1/4 life crisis, discovered beer and girls!! Its still in the garage unsure what to do with it, it is up for sale tho I want to get it out and MOT it etc, but if its worth nothing then it can stay there, any idea what its worth? Anyone please?!