Giles High Standard price check please

I am new on here but have shoot bullseye but not recently. I picked up a Giles built high standard supermatic trophy. It has 5 1/2" tapered slab side barrel with Rib marked Giles 45 shop Odessa, Fl. It has the wagon wheel sights. It does not have the second screw hole in the back. Serial number shows 69-70 and it is in original box that is numbered to gun. The box does not show what barrel length so I am assuming Giles got it from high standard without barrel. Gun is near mint with very little handling marks. Was wondering what it is worth and if i should shoot it or put it away. it sure is a beautiful gun.Thanks for any help you can provide.

About $400-500, send me a PM and I'll alleviate you of that burden.
Seriously, I don't know but would say both of $1000.