Afraid that's not my area, but since nobody has come forward yet I'd like to recommend a couple of links:
The Reformed Kemeticism
group on ecauldron, a really good, knowledgeable group of folks. Try the stickies at the top first.
The blog Peaceful Awakenings
by Kiya Nicoll (goes by Darkhawk on ecauldron) has some really wonderful writings about Kemeticism and also polytheism in general.