The Free to Play option hasn't been shared, to the best of my knowledge. I don't think I could recommend going for maximized Mastery with Free to Play since you are only getting 8 out of 11 skills. After months of playing, I've decided I can go down to 9 out of 11 skills. Previously, I was running 10 skills minus Tinkering.
This isn't the true absolute maximum, but this is now what I am running. 500 Skill points is an arbitrary number, but is also a checkpoint with Workbenches.
Alchemist: 50% Alchemy / 50% Mastery [Maximum Efficiency for 265 Mastery at Level 50]
Artisan: 50% Arts & Crafts / 50% Mastery [Maximum Efficiency for 267 Mastery at Level 50]
Jeweler: 95 Jewelry / 125 Metal Working / Remaining Mastery [Loss of 50 Mastery for 130 Mastery at Level 50]
Master: 50% Armor Crafting / 50% Weapon Crafting [Loss of 5 Mastery for 262 Mastery at Level 50]
Sculptor: 50% Wood Working / 50% Mastery [Maximum Efficiency for 265 Mastery at Level 50]
Seamstress: 50% Textile Working / 50% Mastery [Maximum Efficiency for 267 Master at Level 50]
Sorceress: 50% Magic / 50% Mastery [Loss of 7 Mastery for 174 Mastery at Level 50]
Wizard: 50% Rune Writing / 50% Mastery [Maximum Efficiency for 265 Mastery at Level 50]
Total Possible Free To Play Mastery = 1958 (if you choose 2 Tier 2 Workers with a 12 / 8 split).
This recommended build = 1895 Mastery.
This saves on boosting 2 of the 7 worker buildings (unless you need to craft using those skills). The Jeweler and the Sorceress are Tier 2 Workers with less skills points (than Tier 3 workers), giving less Mastery. I chose to assign Magic to the Sorceress instead of the Alchemist, saving 6 Mastery between the two workers. It is most efficient to sacrifice skill points on those workers to get up to 150 + 350 skill points for a base of 500. Since I am not running Weapon Crafting, I miss 5 points of efficiency on the Master.