Did you lower the price? I thought I saw this listed for more before?
My best offer, and would have to see it in person before I'd really pay it, would be around $500 (maybe) if it is not together and not running. Depending what I saw in person maybe $300 or $400.
Parts in a box to me means kinda basket case, and if no spark then the engine is not running I guess which means that's a crap shoot also. Even if drained carbs may be shot and need rebuilt which is major expense. Brake parts off, well they probably need rebuilt also.
Probably big money to get ready to ride, then a total repaint, and frame should be black so that's allot of work also to get right.
Not trying to be insulting but when I look at a bike that's how I look at it.
If you can put it together, have it running and brakes working, well probably worth more than I'd pay.
As it sounds though now, $500 is a bit high for me as is.
If it don't sell in a couple weeks for more, give me a yell and I may check it out and see if I would want it.