there really is no gospel for PCT, as the individual responses to these drugs is wide and varied.
however that being said, those are pretty high doses of HCG. possibly enough to induce a thyroid storm (if you have any kind of elevated thyroid) and certainly enough to cause gyno (AI use will help in that aspect). though again that being said some people can use those doses without issue.
dont particularly reccomend arimidex, even lower dose for PCT (however it can be used)
with respect to the clomid using 100mg for 5 days is an acceptable protocol, however since the benefit is minimal and the increased sides are usually notable. typically reccomend 50mg ED for 2-4 weeks.
if you outline what exactly you have supply wise, it would be easier to delineate a protocol.
there are many different protocols and no single one can be said to be "most effective". There are those that are generally better than others, and individual responses to the drugs as well as drugs previously used, and of course what resources you have are all factors in designing a good protocol for you.