For 6 weeks and 3 weeks of 100mg i'd try to get a SERM if possible, will make your recovery much faster. OTC is an option, something like DAA and Bioforge or iForce has a couple good products that would work great for OTC PCT. I'd recommend picking up CEL Cycle Assist, milk thistle is a joke on it's own. NAC is what you're looking for, and Cycle Assist provides a comprehensive support system for your organs. BCAAs will help too, but not to the extend you're thinking, and if you're bulking you have plenty of aminos circulating so i'd save the supplemental BCAAs.