Hmmmm, $4,000 can go pretty quick between rifle, scope, and rangefinder, but I'll try to spend your money:
Bighorn Origin = $825
Bartlein/Benchmark/Other = $325
TT Primary Trigger = $125
KRG Bravo = $350
Chamber Barrel & Thread Muzzle = $450
Seekins Precision Rings = $130
Badger Ordnance Rail = $130
NF SHV 4-14x50 F1 = $1,064
Atlas Gen2 Tall CAL Bipod = $260
Sig Kilo 3000BDX $925
Magpul MS1 Sling = $70
Total = $4,650
You could save $500 and get a leica handheld LRF in lieu of the Sig Bino LRF. You can also find 10% off codes pretty easy to cut down on cost of rifle components. OR you could buy a generic rifle and a better scope.