The highest I've seen one of these go for on eBay is almost $175 (!) within the past couple of years. More recently, though, they have been selling for anywhere from $40 to $80, with a couple close to $100.

Since you have all the parts, it's never seen paint/glue, the Certificate, and the instructions, yours could command a price slightly on the higher end in my opinion.

I'd say $75 might be a good ballpark for you, or as high as $100 if you're in no particular hurry.

I'd love to have one of these, but I'm waiting to catch one on the cheap

Good luck!

Tom