Hi. If you still want a Maughold map I can scan and send you a very early one, if it is of interest. It is undated, and the places and owners' names look hand-written. (McCorkell; McCristen; McKerrous; etc.)
You can put your email address on the board with "at" for "@" to prevent spammers, or see my one on the first page of Ian Radcliffe's website.
www.mannincloud.info/
Sue