Yeah I think your right about getting her painted in Volvo team colour then f800 decals me is thinking so it will kinda look like a 700c gravel F800. Sounds mad I know but that's what I'm planning on doing. Thanks again everyone for help I will try some paint thinner tomorrow on that frame number sticker and keep y'all posted.I'd say that you won't hurt the value of the frame by a repaint as long as it's going to be something you ride and enjoy. I wouldn't attempt to pay for a repaint and period correct build if you intend to resell it. Could make a perfectly fine rider but my take would be to build it up to your liking without repainting.
I'm going to look forward to seeing what you find out after you get so thinner.
I was about 15 minutes late from picking up a Trail frame that was for sale locally and built it into something like what your plan for this bike is.