arimidex is more of a estrogen blocker. Clomid will be good for a kickstart in restarting your natty test production. Run it for 2 weeks and nolva for a month. Should be good enough. Run the clomid at 100mg/d week 1, 50 mg/d week 2, and the nolva at anywhere from 20-40mg/d.
HCG would also be a good option.