I’ve just completed a reconstruction of “Percy Runs Away” & “Coal” from Series 1 with a nameboard sequence included, just as it appeared when it was originally broadcast and on the “Further Adventures of Thomas the Tank Engine & Friends” 1985 VHS. It’s not perfect, but considering this version has not been aired/released since 1985, it’s better than what’s out there.
PM me if you want to have a look.