If the price is right, buy them.
I think the Altec 12" in these were actually more of a 13" ( from an Sd perspective ).
Worst case, those cabinets become to be a mule for a future le14a project .
Are you thinking of going after Altec 32b horns ?
- They have ( unfortunately ) become a bit of a fashion accessory, which has driven up the price ( beyond what their "cost-2-benefit" ratio actually supports, IMHO ).
Eminence 290B BiRadials are a very viable ( non-bent ) horn alternative ( when driven by an Altec/GPA 802-8G ).
:)