The problem with something like that is that the cage or the seat may not meet current SCTA cage and seat rules. Plus a number of other things.
Plus the Nascar shit does not fit in ANY class other that time only unless it is a 40+ yar old TRUE stock bodied racecar.
There is currently one for sale here on the HAMB by Casual 6, its a proven and current record holder, setup for a Stovebolt.
Having run in XO PRO I took a quick look at the photos and noticed like many have mentioned, it appeaers the it does not meet current build/safety requirements. They are little things, the seat has to be changed to a metal seat, there is no helmet/head side restraint built into the roll cage, not sure if it had enough fire suppression supply. Not trying to dis the sale, but to show as mentioned, once a LSR vehicle is not tecked and raced for a few years they fall out of safety requirments. Don't forget the cost of the fire suit and the HANS device.
Tman, it has a sticker from 5 years ago, so the tubing should be OK and it has the metal seat and the roll cage looks like it has a proper head restraint area. Not sure about the gussets. But everything depends on class/motor you run. This would be a good start if you have your ducks in a row and race it next year after taking to be preinspected at like May ElMo. But if it sits many more years it will fall out of class.
The Jalopy Journal
