If you are buying just because you like the look, and want to try without the risk of losing your pants when you come to sell, then it is probably not the piece to buy. The fact that it has appeared brand new at that price in an TAG outlet tells you all you need to know about the RRP, and discounts readily available on new pieces
Try having a look for similar pieces on eBay - what they sold for, not what they were listed at
Also ask this community if they would be willing to part with around £6k to own one second hand..
Personally, I wouldn’t buy one