If either were a crafter that I collected then I would consider paying those prices. I do price checks on single crafter name [exceptional] armor at 12m-20m.....20m for the legs is the very top dollar so I can't offer you more there. I usually won't pay more than 20m for Sewn Thigh boots unless its a collector set I have, but I will offer you 30 just to try and help you get your money back, but I can't swallow paying more than that.
I will tell you however that by leaving them on your vendor they may end up selling for 50m. Lots of people like owning these type items, but not as many are actually knowledgeable about the prices. Thats the reason Palpatine is able to screw people over day in and day out on this stuff. So while I do not encourage you to trick someone by spamming gen chat saying they are some super secret special thigh boots that are worth 1 billion, but your feeling generous and selling for ONLY 50m lol.........I do think you have a chance at getting your money back by leaving them on your vendor for a while...who knows maybe someone that owns a set with that crafter name and is missing the footwear will come across it and be stoked to find it there. Good luck