5100s good deal?

I can purchase some Bilstein 5100 front and rear fro about 125 to 150, owner says 5k miles. Is this a good deal? I have a stock 2017 sport. From what I can tell I would also want to get some new coils and a leaf pack in the future. I will be towing a 900lb camper at some point. I doubt I would ever put much on the front other than the SOS Slimline bumper with winch.

 

Why not buy new ones, they arent that pricey, match them with springs from the start when you're ready to pull the trigger.

I wouldn't put used shocks on my new truck, thats just me.

 

Is that price for all 4? If so that's a great deal. New is ~$380 or so. New coils from Old man emu (OME) can be added for $175 as well