Standard advice would be to take 500iu of hcg twice a week until the run up to PCT. Then 21 days after your last pin take your serms. I like the idea of nolva only at 20mg ED for 6 weeks, but most recommended clomid in combination and higher dosages, 4 week PCTs being more common.
I am not nearly as knowledgeable or experienced as others here and I'm only telling you this info to tide you over until more people reply.