Re: USRG-TP30 pricing, sanded to raw wood & tung oiled.
I sold them both here, and it's probably been since 2012/2013 that I sold my last one. Also sold a USRG10 that went for $750. I used to be moderately obsessed with the USRG series, and keep a pretty watchful eye out for them still. I've never seen one actually /sell/ for anywhere near $1800. Not to say it didn't happen, but it would be pretty unusual to me.
They're not that common these days, so it's tough to put a price on, especially given the modification. Ultimately it's all about waiting it out and getting it in front of that one person that your guitar speaks to, who doesn't mind paying a higher price one that's had the finish stripped.
It would probably help if you had some photos. If you want to pm me some photobucket links I can post them in the thread for you. Or stick around and get up to your 10 post count.