If you are looking to have the rifle built for this season it may come down to what you can get.
If weight is going to be one of your deciding factors, I would look at the Defiance anTi-X or their GA Hunter.
The anTi-X comes in at 23.4 ounces with an integral scope rail.
The Deviant GA Hunter comes in at 28-30 ounces with an integral scope rail.
Chassis or stock you have plenty of options. We have built several rifles with the Manners Long Range Hunter stock, and they are great. You can order them with the built-in mini chassis so you can drop the barrel action right in or without the mini chassis and have it bedded.
I was extremely impressed with the MDT HNT 26. I had a client come out last season with a 6.5 PRC in an HNT 26 chassis, and I was very impressed with it, so I built one for myself. I also built a 300 PRC and 2, 7 PRC this year, with two of them having folding stocks. The only down-side if any is the HNT 26 LA uses CIP 5 round mags so the magazine extends below the chassis.
I would also take a look at AG Composites for other stock options, and the XLR Element. I have seen all of them at NRL Hunter matches this year and they all worked well and very repeatable.