Selling the Home, help on price

[Paty]

Not sure which section this would belong to, I can't find anything more specific than "general" so here I am. (again)

I decided, It is time for my ginormous tank (60" long x 25" tall x 16" deep, ~100gal)to go to a new home. I know I have to move sometime soon and it is just way too huge to move during a busy moving day and who knows where else and how often I have to move. It took 3 strong people to carry the thing into the house after I finished the inside remodeling but before putting anything non-permanent in (substrate, snake, decorations, etc.)

I am however, having a pretty hard time figuring out a fair price to let it go for.
I bought it for $50 from a friend who the tank didn't mean anything to at all, it was basically trash for the guy so he didn't care about the price much. It was a fish tank (I know, not ideal but I think I made it work).
A used empty and plain tank this size i think costs about $200.
I have put in secure lids, as well as built the entire insert (background & sides with shelves). It is also set up so that the thermostat probe can run all the way down without being visible at all. Thanks to the insert being made of foam, the tank is pretty well insulated for a glass tank.

Online,if I try to find an insert (which doesn't even seem available that size without custom ordering it), I would spend $288 just for the insert alone and it would only be a background and sides made of 5 separate pieces and would not include basking spots or any other shelves.
I feel like I have tastefully improved the tank's look by a great amount.
Also included in the sale are the UTH (duh), heat lamp, a large tree bark hide, the fake plants (8).
At additional costs i included the thermostat, thermometers, hygrometers, and water dishes

Was wondering what people's input was for how much I could sell it for.

https://ball-pythons.net/gallery/sho...mageuser=67628