There are time wasters out there. It's possible they judge it as one of similar price bracket/mileage, until they need new engine + transmission.
There are loads of sites - gum tree, facebook, auto trader - for sale on this site!! Where people can appreciate their P38 and it's LZ history. It'd be like buying a vehicle with it's own personal LZ expert included
Couple weeks ago there were hardly any P38s on ebay, soon as you put yours up there are loads, usually worse than yours and about £2500
So chin up old chap