The driver data is there so it’s basically a case of experimenting using some speaker enclosure design software initially.
Wilmslow audio sell the drivers and may have some suggestions to get you started.
Failing that you could always contact David Lyth at Volt and see if he has any suggestions.
http://www.wilmslow-audio.co.uk/volt-fr2201-707-p.asp
Single spur balanced Mains. Self built music server with 3 seperate linear PSU, Intel i5, 16 GB RAM no hard drive (various Linux OS). Benchmark Dac2 HGC, single ended XLR interconnects/Belkin cable. Exposure 21RC Pre, Super 18 Power (recap & modified). Modded World Audio HD83 HP amp. Hand built Monitors with external crossovers , Volt 250 bass & ABR, Scanspeak 13M8621 Mid & Scanspeak D2905/9300 Hi. HD595 & Beyer 880 (600 ohm) cans.
The whole problem with the world is that fools and fanatics are always so certain of themselves, and wiser people so full of doubts.
-Bertrand Russel
John.