I've done Turinabol alone and it did not kill my sex drive, so...
If i were you i'd just do 80 mg Turinabol per day for that 8 weeks and add Nolvadex for the last 3 weeks at 20 mg per day. That should give you what you are looking for.
PS. and as a pct i would do 3 weeks of Nolvadex at 40 mg per day.