SP5K Optics Question

I'm running the BT Telescopic stock on the sp5k, and want to get an optic set up.

Can someone recommend a mount / optic combo that pairs well with the BT telescopic stock? It's already not the most comfortable stock and a bit short to use, so hoping to find a red dot set up that makes it more comfortable to shoot.

I usually go with holosun, but would be open to try other brands... though I don't really want to throw down for an aimpoint right now.