Anyone know where i / could / possibly get ahold of the Kingmaker books?

[Xalchs]

I know this is a longshot but we've just started a local game of Kingmaker. I've already ran it online which worked fine with PDFs

but i always like to have the physical copies for local games. I know it's been out of print for awhile and it was quite a popular AP. People are selling the books on Ebay/Amazon for £90-100 a pop which is a fair bit out of my price range

Equally so, is there any hope for an anniversary edition like Runelords?

[Reverse]

Printing them yourself is generally the cheapest bet.