We visited Piggl on Wednesday night and 99% sure we're going for that now. Facing forward feels more spacious and the combination of huuuuuuge drawers under the seat and has a useful space down the side to fit camping chairs and table. The downside is not being able to fit the Cadac on the side but I don't think we'd cook anything proper inside and can just heat water in the BrewKit, and there's always the clip on table. It's not our dream conversion but I think we'll end up sticking with it for a long time.
We just need to arrange for a diesel heater, leisure battery and lighting then we'll be placing an order. Emma from Piggl has been great to deal with and has responded quickly to any questions we've had.