Btw if this is unclaimed, you can create a char on any server then claim and mail.
The mount alone is worth about 13-15k, plat skin chest about 8-8.5k then the pet and lawmaker skin together is about 2k. Do the maths and check other threads like this one for reference:
https://forums.d2jsp.org/topic.php?t=92639035&f=69 so you don't get ripped off.