Sub woofer - Where to start

I picked up a couple of 15" sub a while back for some trap bins. the project didn't work out and the bin are now gone.

I have lost the spec sheet. Rather ditch the drivers I would like to model them then come up with a suitable cabinet for home. Cabinet work shouldn't be an issue as we have Chippies in the family and I own 2 table saws (don't ask why 2).

Is there a "so you want to measure the Specs of a driver" thread that will tell me what to measure and how? (A sticky on the top would be good)