I can't say whether it's a "good buy" or not - I interpret that to mean 'worth the price' and that's somewhat in the eye of the beholder.
I am willing to echo @DangerNoodle though, and say that I've installed one and it was pretty painless. The metal is thick enough for a passable welder to zap it together without warping or burning through, and (at least in my case) it fit pretty well on first try. If your old one isn't swiss cheese, it's good to have a model/form; ofc, you can use the fiberglass top, some clamps, etc. and then weld.
But yeah, bottom line. I don't hesitate to vouch for the part.