Oh, and Ovilla sparkplug dude has been heard from re barn finds. He said the two CT90's were sorta junk but the ST90 has some possibilities. Here's his description:
"
Well I finally got it and 2 CT90 (junk)..the barn finds I told you about and a ST90 with 989 miles , has been parked for last 15 years, no title.. It is missing the fuel tank and carb needs work. It does have good compression, tires hold air, rear wheel has 5 missing spokes, front wheel looks ok, there is a lot of surface rust but seems ok in spots where I did a bit of steel wool. Fenders are good, need some wool. Speedo head looks good and bucket is good, no cracks, the seat is shot....tailamp broken, handle bars look ok. Good news..again engine is free, and the muffler looks solid. needs fresh paint, no holes. Maybe I should send you a picture. I was thinking of parting it out and selling it on ebay if I don't sell to you."
He said I can have it for what he's got in it--$200.

It should be worth that just in parts alone.
