^ I agree, the price is fair.
* But I would ask the seller (Mark), which version is the Main Loader on his 875. It has to be 1.01 or higher. Anything lower, and you'll be stuck with no upgrade possibility.
Also, ask him if the HDMI video is the latest firmware, should be version 1.8 or higher. If it's a very low version, the HQV Reon video processor is faultif, and needs to be updated.
Those two points are very important, concerning the 875.
The 875 is not without it's faults.
They can be circumvent somehow, but it's important to be able to do the firmware updates, and it's not for the faint of heart for sure.
Good luck,
Bob