The perst can be had brand new from DCA for £134
https://www.davescustomairsoft.co.uk/wadsn-aluminium-perst-4-red-laser-and-ir-designator-black
Or £90 brand new from Aliexpress
https://www.aliexpress.com/item/1005007796724275.html?spm=a2g0o.productlist.main.3.fe8b76zp76zp7G&algo_pvid=37170cb4-7a0b-4cd0-a6e1-0b8df5007ff1&algo_exp_id=37170cb4-7a0b-4cd0-a6e1-0b8df5007ff1-2&pdp_ext_f={"order"%3A"56"%2C"eval"%3A"1"}&pdp_npi=6%40dis!GBP!24.49!24.49!!!228.03!228.03!%40211b80c217545721079994686e990d!12000042233635745!sea!UK!6004252180!X!1!0!n_tag%3A-29919%3Bm03_new_user%3A-29895&curPageLogUid=XGpsFgLp8Dbb&utparam-url=scene%3Asearch|query_from%3A
By "doing my own research" I discovered cheaper alternatives for guaranteed new items with warranty 🤔
Your kit to sell so you dictate your prices, rule of thumb is 60-70% of new cost for most kit & despite it being unused it's still second hand. on a possitive note the Mawl is a good price compared to the others.
but...
your last sentence screams 'attitude' to me so won't be making any offers because of that alone.
Hey man, just a heads up: WASDN is an Ali Express brand, Patrolbase and others flip them at a huge markup.
That PEQ15 for example can be had for £24 new:
https://www.aliexpress.com/item/1005009202921806.html