Keep in mind I haven't touched a V1, but 1977 sells a rebuild kit for the V1 that comes with 4 bearings and 4 seals. You might be able to get away with just changing the crank seals, but if your cases are already split you might as well go all the way and just replace all the bearings/seals.
I recommend that you tear your engine down, pull the old bearings and seals out and bring them to a bearing shop in the area. they will match you up with the correct size bearings and seals, and you will save money.
I like south shore bearing supply in quincy mass, cost me $27 for 4 bearings and 3 seals. they sell good quality bearings, better than the SKF ones that treats and 77 sells.