I ended up selling my 2015 standard for 1500 euro. (and still making a profit after gibson dumped them)
So that translates to 250 for the katana.
If you're in the market for a les paul it's a good price. But it does come along more often. It took me a while to sell the guitar for that price and I didn't get higher offers. But Dutch/UK market might be different.
ps, that geforce tuner isn't BAD but also not great. It's easy to put on locking tuners. I put grovers on mine I believe.