Hi gensfj,
I'll get back to you regarding the offline contact, I need first to search for a book I have to see if it has mention of a Takeley Searles connection. The book was entitled from Bardfield to Brooke End and was written by Ken Searles, Ken did a heap of research on the Essex Searles but offhand I can't recall if he covered the Takeley line.
I've personally tracked my Searles line back to the family of William Searles c1680 and his wife Grace Goldstone 1685, with no sign of a Takeley connection but then I haven't followed up ancestor siblings in depth so......
Missing registers are also a great problem with the Essex Searles, many lines (including mine) head back to Great Saling whose registers only go back to about 1713 or thereabouts, same problem with Stebbing.
I'll hunt up the book, I think I know where it is and then get back to you.
Regards.