I have this seat, I just got it in the mail last week, it is accually the second one I bought from him, the first one I bought was the one for the cb350 with the mount brackets, when that one came, it was only 22 inches long, meaning to fit it you would have to cut off the back of the frame behind the shocks, I didn't want to do that, so I ordered the $55 one as it is 26.5" long or so, I am gonna use the brackets from the other one to fit it to the bike, the brackets seem good quality and fit the frame perfect, I haven't mounted the seat yet, just test fitted the bracket in the front and lined up the rear one to the cross plate under the seat. I am new to all this as I just got my bike a month ago, but the seats feel like good quality to me, I am gonna sell the shorter one back on ebay, or to a friend or something when ever I get around to it.
here is a pic of my bike before the seat, will get the seat on in the next couple weeks,
here is a pic of the seats side by side
here is the front bracket
here is the rear bracket
here is the bottoms
here is the end edge of the short one
here is the end edge of the longer one
I can't wait to get this fitted to the bike, then gonna paint it and my fairing to match the tank on the bike!!!