Bighorn TL3 long action, Manners EH1 with CIP length mini chassis, proof 28 nosler barrel, trigger tech special trigger.
Since you want to use that rifle to hunt and just shoot with, I recommend getting a second barrel. 6.5 creed or something, use the 6.5 saum for hunting and the other for target shooting. Cheaper ammo to target shoot with and wont burn out your 6.5 saum barrel on the range. PM me if you want more details.
Just FYI, on the trigger, TL3 doesn't like the timney calvin elite. Thats what i started with, there is a known issue with that trigger that I didnt know about before purchasing it. So just dont use it on a TL3 action. I recommend trigger tech, its been great, that is what Big horn recommended to me.
(edit to add, just saw that you were already looking at using a trigger tech trigger, I'm still going to leave the info above just as an FYI)
My next project will be a more compact hunting rifle. TL3 short action, manners stock, somewhere around a 20" barrel thinking 6.5 saum or 7 saum.