What drivers would you stick in these boxes?

Which MarkAudio (or any other) drivers would you put into boxes with 2 separate ported enclosures? Top c. 14l lower c. 30l.
MA chr 120 below with Alpair 10 above was suggested with series inductor on the chr.

Any suggestions?

Boxes are reworked 2.5 way Musical Technology Falcons.
 
A possibility. But i wouldbe thinking WAW not FRs. Top for the midTweeter (A5/6/7/10) and the bottom for a woofer (Alpair 12pw would be a possibility)

Best picture i could find.

musical_tech_falcon_25way_tower_speaker_from_england_1443549559_881209e9.jpg


How tall is the 30 litre bit?

dave
 
Lower section is 32 litres. begins just below tweeter with 45 degree downward partition. 21 x 7cm externally flared port.
Upper is 15 litres. 15 x 5 cm externally flared port.
Removed foam, braced cabinet then heavy coated with bitumen.
No parallel surfaces save for top b bottom. Nice boxes
designed by Clive Gibson who knew a fair bit more than me so shame not to do something with them.
Planned wiring drivers in parallel and trying series inductors outside of boxes til find best value.

Thank you for advice..
 
A 120 in the lower and a 10.3, P11 or 11MS in the upper should do. The P11 may sound a little more projective through the midband as on a baffle that size it tends to show a bit more output around 1KHz than the 11MS (I was working on something akin 3 weeks ago when I visited Stefan at KJF audio).