just a quick tip - I have a half plate Lancaster of similar vintage which is fitted with the TP roller blind shutter. The blind on mine is quite porous, but otherwise runs at 1/30 quite happily. If you find yours leaks light it shouldn't be too hard to replace the blind.
There was a thread in the camera mods forum which gave details of a japanese seller who could supply suitable cloth and he even shows how to rebuild a shutter curtain. I'm yet to order anything from him but will get around to it soon as I have three TP shutters that need rebuilding.
BTW that is a beautiful camera. I try to buy cameras that will be used, if only occasionally, and I'm sure that using that one will be a very pleasurable experience.