You can do better for $4k.
Here's what I got for $4k:
Sette X7 Hardtail 29er with X7, Rockshox Silver TK - $800
Planet X Stealth TT with SRAM Red - $1000
Neo Hyper SRAM Red - $1200
Felt F70 SRAM Rival - $500
Clothes, Garmin Edge 500, road/mtb shoes, pedals, etc - ~$600