8 subs with no parameters

Good morning all. Here's a brain buster someone might have an answer for. I recently purchased 4) Clarion 8" subs that were used in thieir amplified subwoofer kits. Madisound Speakers had the raw drivers for sale at a ridiculous price so I picked them up more out of curiosity than anything else. So now I have these drivers and am preparing to build a cabinet, only one problem... no parameters for the drivers. Clarion has nothing on their web nor can anyone at Clarion tech find any reference material. Here's what I know

Drivers are poly cones with 1" butyl surround, the kits were ported cabinets, (if you want to call them cabinets), xmax measures right at 9mm and the drivers are 2 ohm. Without the other parameters I'm struggling a bit to come up with Vb, port diameter & length, etc.

I want to use them in a 2500HD in a wedge style cabinet, (1 cu ft max), paralleling each pair then series the pairs for 2 ohm total on a Fosgate 325.1 Obviously I'm not looking for SPL, (I'm an old guy), just decent bottom end. I have other drivers I could use, (Fosgate P1 10's, Emminence 10" DVCs, etc.), but I'd like to try the Clarions just for fun. Any suggestions?