What does the hivemind think of rear oil seal kits? Are they all the same? Has anyone used the one from AH Spares? With the Brexit discount, it is only about $120, about half the price I'm seeing from the usual suspects. https://www.ahspares.co.uk/austin-healey/sprite/Engine-XENG101-to-XENG475/CRANKSHAFT-OIL-SEAL-CONVERSION-KIT-1.aspx Thanks, Brian