On the index it is under "L. Scaccar" numbers 1 to 95.
It is definitely no.82 which was written on the actual contract, as well as the index. No.81 was Jo Callow & Kath Kerruish Contract.
And it was Southside Sales, not Northside, according to your website:
www.isle-of-man.com/manxnotebook/parishes/parishes.htm#ns which I double-checked, because I had index copies from both Northside and Southside.

Sue