I would assume that the LW classic would be Sherwin-Williams 'Classic99' paint; I don't know what the LW 200 is (perhaps their 'Duration' paint). Both Mech and I used their 'SuperPaint' in LW, but the LW base has been discontinued in that line. I have never used either of the base paints you mention, but my guess is they would work fine for making C&S.I contacted Sherwin williams and they said they have two type of LW. They have a LW 200 and LW classic. The lw 200 have a better spread than the classic. Does it matter which?
Something that I need to stress is that ALL the formulae for the C&S mixes produce essentially the same results, use which ever one is easier for you to find ingredients for.