Price check: Specialized Stumpjumper (M, 29er) — alloy, SRAM 1×11, RockShox, tubeless

Hi! A friend is considering this bike, but the seller wants us to make an offer first. Could you help us with a fair ballpark value?

Specs:

• Model: Specialized Stumpjumper (he doesn't know the year)
• Frame: Aluminum, size M
• Wheels: 29", tubeless
• Suspension: Full-suspension, RockShox front & rear
• Drivetrain: SRAM 1×11
• Dropper post: Yes