Trying to figure out where the price is coming from.
Original NIB TWDpro was 4200 to 4400 bucks and that included shipping.
1200 in mods would bring it to 5400-5600 and that is the assumption that the mods are worth what they cost originally. Reality is very few mods actually have perceived value on the secondary. (colordmd and topper typically have some value on secondary)
Best case scenario would be to get out of this for the cost of the original game and mods and 5-5500.
Never seen an upcharge for installing mods before.