There is no reason it shouldn't be provided you are happy with removing the panels and replacing them to gain access, all the parts are available if you don't fancy the ash work yourself.
http://www.harpersmorgan.co.uk/Other/woodframes.htmBob has passed on now but Roger is most helpful and knowledgable and will give you good advise.
I bought my car from them a couple of years ago they are one of the older established companies.
