New to me used camper questions and thoughts

I may or may not have a different opinion, I would need to know what the solar panels are first, as well as what kind of controller. I may tell you to leave them on the camper to get more value for the camper overall if they are 12V panels and a PWM controller. If they are 24V panels and a MPPT controler then it's a tougher choice. stuff is worth a lot less than it was 5 years ago. I can get two 350 watt 24V panels for 500 bucks and a MPPT controler for 230 bucks CDN so its not a crazy value. where I find the value comes in a lot more is the new owner not having to put them on the unit himself. the number of people that are willing to install there own solar is actualy quite small. so if it was me selling it and you think the value of the solar system would be about 500 bucks add 600 to 700 to what you think the camper is work and then use it as a bargaining chip. let's say you're asking 2500 for the camper and add 800 for the solar system, that's 3300. If someone offers 3000 then you can say well, I can do that without the solar system, 9 out of 10 times they will figure the system is worth the 300, but it gives you a bargining chip and you make what it would cost to get a new system.