Bucket seat for mk2.5

[Berkshire bred]

Right, im starting to decide what parts are going on my mx5 project, slight issue with bucket seat is that I have heard through my research that is is tricky to get any thing other than a fairly slim seat in due to space. I am a fairly solid chap quite broad shoulders, 46 inch chest if I remember correctly, wear a 36 inch waist. About 5 foot 9.
So I think I'm going to need a fairly wide accomadating seat. Is there a bucket seat that will fit into a mk2.5 that will suit me, or am I better of just leaving in the standard seats. Cheers, Adam.