Although your refit appears modern and well done, I do not think it's fair for buyers to suggest that this habitat was built in 2023. The actual habitat is from 2010 and the vehicle itself was built in 1989. There can be differences between chronological age and the condition of the vehicle after an extensive refit, but in the end, I would think these details would matter to a buyer. It would certainly matter to me, as a seller, to make offloading something like this as easy as possible for myself. In the boating world, it is routine for ships to undergo extensive updates and become completely modern vessels. However, that does not change their date of manufacture.