I bought my frame for $15. I plan to set aside the 5" GoPower wheels that were on it because they have a fair amount of corrosion, but the roller bearings in them look useable.
I don't think I have enough of the original left to make it worth restoring. I plan to make a new swingarm to fit a fatter tire and wheel with a disc brake.
How original is yours? I found a few variations after seeing your pics, but yours seems like the same model as what mine originally was.
Are the front springs stiff enough to be useful? The front springs are really what caught my attention on this one.