Just get some pure powder. Pills have fillers and crap.
You don't really need anything to enhance the penetration because stanozolol is a small-enough molecule for sublingual absorption...but you could go that route.
UGL Suppliers really need to produce "sublingual film" (thin film drug delivery). I've experimented with it a little. This method is becoming increasingly popular with Pharmaceutical Companies, but don't expect them to give a shit about making good steroids.
And you're right, sublingual does increase effectiveness and reduce liver issues.