I spent a lot of time finding the FAB defense mount to put a better scope on my PSL. I ended up putting a 1-10x Primary Arms M10 BDC scope to keep with the DMR theme. Haven't had a chance to try yet, but it might work for you as well as it is an SVD style mount.
I have 2 K31s and one K11, all great Shooters and very interesting rifles. And with GP11 being so rare and expensive, I reload for them.
Got all three rifles from the classifieds on here. All three were reasonably priced.
I picked up the Savage 110 Elite Precision in 223 Rem last year (want to do a conversion to 6.5 Grendel at some point and it's a good starting point).
Have to say, I was initially turned off by the price, but the MDT chassis is rock solid and has more than sold me on the Savage action...
I have a Ruger SR762 piston AR10 and it has very reliable, accurate and no issues to clean/maintain.
I also have an Adam's Arms lightweight AR15 upper I used to use for 3-Gun...very accurate, but the gas regulator setting moved on me a few times before the start of a stage and I had to bolt...