I am looking at a PST E7 100 that I am told is new and has never been dove. There is a tank valve and boot installed and the visual inspection sticker that lists a date of 04. It looks like a bead finish and has the blue PST decal on the front of it. Should I be leery of it due to the expired vis 4 ½ years ago? This is being offered by a private party for $200. Anything special I should look for and is this a good deal or not?