you CAN do pct with just clomid mate
admittedly i'd normally use a minimum of 28 for pct but you could certainly give it a bash at 50mg ed for 20 days
as for the letro i'd suggest using it to counter the estrogen for the first half of pct at perhaps 1 tab eod - so you'd need say 5 tabs total. i wouldn't run it longer than that tho as after the first week of pct your estrogen levels would hopefully have dropped to a level where clomid alone would be fine.
so pct with what you have imo:
day 1- 20 1 tab clomid
day's 1, 3, 5, 7, 9 1 tab letrozole
AKA theweeninjaguy. 8 st 2 lb when I joined this site, I’ve gained 7 stone + since then.