If I were you I would just do 1-AD by ergopharm, you will get great results from a first cycle (It was my first cycle of PHs when it first came out). If you are going to do that you might as well do a topical 1-test 4ad combo, since you are trying to get 1-test with the 1-ad anyways. However if you don't like to use a transdermal twice daily the 1-ad pills are the way to go. You will get good results. 1-ad is more expensive and more convenient but not as powerful.
Do 1-ad if you want a low-sides 1st cycle.
do 1-test, 4ad transdermal if don't mind using a transdermal, probably more sides because it is stronger (I never get any but some do).
Either will give you good gains.
Check on the dosing for the 1-ad if you go with that, I think it says 300mg a day (not sure) which was low for me when I did it for a first cycle (didn't know **** back then). You should try it for a week though and see what happens, if nothing bump the dose. I woudn't worry about anthing more than 6-oxo for PCT w/ the 1-ad, if you do the 1-test then go with nolva, but I think 6-oxo would cut it (it is less effective and more expensive IMO though).
I now you wanted 19-nordiol but I would not go with that. I don't think it would give you 15-20lbs but 1-ad probably would, not all lean but you can always cut later. 1-test would definatly if you have never done a PH before. either way be sure to EAT RIGHT!