Pirate....
Create a Carpenter /tinker
with 50 in each skill.
Make one box
then work tinker up to like 65
make another box
then work tinker up to like 85
and make a thrid box
Then make a box with a GM tinker
With the changes, you no longer need multiple targets.
Lock the one box, and pick it till you stop gaining, then move on to the next one and so on.
The GM box will take you from about 90-92 to 99.5
Then, go to dreadhorn's cave, and attack the satyr, and wait till he discorde's you. Once discorded, run out of the cave so he stops attacking you, and run back in so you are still discorded. Then follow him around and pick you 85 skill box. You will GM.
You should be able to GM lockpicking in a day or so if you work at it.