Hi Matt,
As you know, we have been in contact by PM and by e-mail. I hadn't realised you had started this topic on the Forum.
I can do you a 6-mod / 4-way IP65 board, with Main Switch, 2 x 32A Compact RCBOs, 1 x 6A Compact RCBO and busbars, for £61.67, inc postage + VAT.
The CU is just 163 wide x 215 high and would fit neatly where the old one is, without needing to extend any wiring.
I have everything in stock.
PLEASE NOTE I AM ON HOLIDAY FRIDAY 7th FEB UNTIL SATURDAY 15th FEB 2014.