Hi Dave,
Many of the farming families had fishing tackle of various types mentioned in their wills. John Lace owned and worked his 70 acre farm in Lower Ballaseyre, as well as (presumably) going fishing. The fishing boat and fishing nets which he left his son-in-law would have been only a small part of his estate, with the farm going by law to his eldest son and heir and therefore not mentioned. John Joughin hadn't yet inherited their farm because his father was still alive, but no doubt worked there, being the eldest son.
The Corteens who were well-known farmers in Maughold also mentioned fishing and boats in their wills, e.g. "I leave to my brother Thos my part of the boat called Peggy", along with bequeathing his crop and husbandry gears.
www.iomfhs.im/lawsons/LawsonBMD/twill/1804_015.html

My own Corteen ancestor died falling off Douglas Quay, although Tom Corteen (who transcribed that above will) said that he was more likely to have been smuggling than fishing, as many of them were. - But the smugglers wouldn't have needed those nets.
Manx wills are wonderfully informative.

Sue