Hello from The Cotswolds

Hi all, first time on this forum, infact first time on any forum. Bought a J reg 90 last year mainly as a means of transport to get to and from work as we are quite remote. To be honest, didn't really know much about Defenders, and probably should have done more research before diving in! Anyway, I'm in, and loving every minute of it. I'm slowly getting round to upgrading bits and pieces, I am hoping you guys can help me understand approx costs to replace the bulkhead (maybe an Ashtree one) as I've just had an MOT and service and was recommended that I replace it due to significant rust damage. I would need it painted and fitted, how much are we talking? And finally, any recommendations of somewhere to get the job done, ideally in the South West. Thanks. Andy