Mark IV combo -> head conversion in UK?

[Herbie the Rad Dorklift]

I have a Mark Iv short combo, and I was wondering if anyone knew anyone in the UK who can perform a conversion to the head version?

I run a MIDI rig, and I'd prefer it if I could rackmount my amp, then just hook it up to a cab.

I gig several times a week, sometimes it's a faff hooking it all up!

Cheers.