We resently purchased a house built in 1938, and there had been no up-dates to the house since. We have been working on many projects and doing very well in most cases. But, when we got around to the main bath, we find we're having a great deal of trouble finding a surround large enought to fit the old 64" built-in cast iron tub. We don't want to remove it, it's much too heavy, and it won't fit though any of the doors. Is there a manufacturer that makes a surround large enough? We don't want to use tile it's not in our budget with all the other up-dates.