That screen is just a 50" TV with a SCART connection, so if you found any rear projection TV with the right connections, you could make it work. BUT, you lose the nice side art. I wonder if it's possible to replace the faulty guts of the TV and keep the nice cabinet?
Either way, this guy is hopefully ignorant. If not, he's intentionally misleading someone to make a bigger sale. If this were in my area, I'd jump on it for the right price. There are enough large CRT based sets on CL that I could put something sweet together for fairly cheap!