The big slipcased book on 356? What's it worth used?

It's the third edition of a book that's been around over 20 years, this time boxed in a slipcase. The copy I have has one damaged page (salutation to gift recipient) and no number indicating if it's got a number in a limited edition. Here's the specs on the book and its UK new price


Title The Ultimate Book of the Porsche 356
Sub-title Catalogue Raisonné
Author Brian Long
Publisher Veloce Publishing
Published November 2019
ISBN 978-1-787112-13-1
Print run Limited to 356 hand numbered books
Page count 256 pages
Image count 545 B&W and colour images
Format 250 mm x 250 mm, leather bound hardback with dust jacket & slipcase
Price £365.00 incl. postage for UK & Europe (P&P only applies to ROW customers)