British wire wheels in Fresno sells all sorts of products for wire wheels including lead hammers as well as cooper/lead (which they do not reccommend!) I bought a lead hammer years ago for my Morgan and it is still in good shape. If anyone has chrome wheels the chrome wheel cleaner they sell is fantastic- my 20 plus year old chrome wire whells look as good as new.
the also sell anti seize spline grease.
http://www.britishwirewheel.com/hammers.htm