Recommended remap in Gloucestershire?

[s2sol]

I've got an Iveco Daily 35C15 with a 3.0 engine. It accelerates pretty well, but lacks a bit at motorway speeds, and the fuel consumption is disappointing. I reckon a remap will help a lot, but can't find anyone with a decent history in the Cheltenham - Thornbury corridor. I'd be grateful for any recommendations.