Apexi PFC cable

[tets]

Does anybody know of (or have) a lead to connect my power fc to the laptop without having to spend a fortune on Datalogit? I'm sure after all the years they've been about, there must be a guide to make one!
I can't find an option to buy a FC Hako on their website and they don't appear to be available 2nd hand!

And I'm from Yorkshire and tight!!

cheers
Steve