1982 air cooled Westy hydraulic lifters

This weekend I am going to be dropping the engine and transmission out of my van.  I will be pulling the heads and I have a question about the lifters.  I assume that once the pushrods and pushrod tubes are removed I better take out the lifters before they fall out.  The Bentley simply says not to get them mixed up and to store them vertically.  This sound easy enough, but I was wondering if anyone can recommend any extra precautions.  I would like to avoid having to go through the rigmarole of bleeding them.

Thanks,
Jake

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