The comparative study by Nigel Crowe in Manxroots shows the land users about that time but I don't see your William. There was a burial in Andreas, 21 March 1793 for a William Lace from Ramsey also an Isabel Lace from Ramsey 29 Aug, 1797 but no other detail.

"?orn land not yet forthcoming " could that refer to corn.

Coneys hill I can only guess another colloquialism for the time of such as Ballaloney.

Len Faragher