You might be better to look at Woods atlas - this combined with the 25 inch plans usually make it very clear where the farm is - you can tell qtrland + intack (some farms appeared to have intack land not contiguous with main qtr land farm
there is a series of 6 inch/mile O/S maps of that period drawn with qtrland boundaries in Manx Museum - done by Wm Cubbon (+ I think JJ Kneen) in the 1920/30's - a reduced version was in each parish of Kneens placenames