Like you, I was surprised by the Mary FRIEND administration. As administration was granted to her 'natural brother' John FRIEND, she was presumably considered unmarried at her death.
Colin Brent, doyen of Lewes historians, still lives in Lewes & is in the phonebook. In Georgian Lewes p.30 he simply refers to James TICEHURST as working an ancient pit off North Street, Cliffe, which later became an overspill graveyard for Cliffe parish. Cliffe is today part of Lewes, but was then administratively separate, across the Ouse from Lewes proper. Cliffe is surrounded by South Malling parish.
There are large Victorian chalk pits all along the South Downs, but especially where the Downs are cut by the rivers, such as the rivers Ouse (Lewes, South Malling, Glynde, Beddingham, South Heighton) & Cuckmere (Wilmington). These have devoured the traces of most of the smaller, earlier, pits.
James TISEHURST (various spellings) is amerced as a brickmaker in every manor of Ringmer pannage court from 1690-1715 (nominally a fine, this was in reality a licence to dig clay to make bricks for sale from the Broyle common. He appears in the views of frankpledge in Norl;ington borough, Ringmer, nearly every year from 1691-1719, the period for which these records run. He was chosen headborough of Norlington in 1704, and was the alternate nominee for this role in 1695, 1698, 1703 & 1715. In Jun-Sep 1722 "Tisehurst" supplied bricks to the owner of Glyndebourne [account book in the Glyndebourne records held in the PRO after a 19th century Chancery case]. However, he had a range of accomplishments. The Earl of DORSET's steward's accounts for 1696-1712 note James TICEHURST as one of three men paid for cutting down posts and rails for the Broyle boundary fence in 1697-8, and in 1701-2 he was one of a group of men paid for work done about one of the lodge's that housed the Broyle keepers [ESRO/Acc.3610].
Never seen this James TISEHURST in this context, but several of the other Ringmer brickmakers supplied not only bricks but also the lime to make the mortar to fix the bricks together. I suspect they could lay their bricks too, and do the associated carpentry should the need arise. Such men were pretty resourceful, but you don't see the term 'builder' much before the 19th century.