Not sure it's worth getting those skills up too high, looking at Eve-Meep - you only get a 4-5% increase in the chance of success from having those skills at lvl 1 compared to lvl 5.
With lvl 1 skills, Max runs on the input BPC (10-run) & Stolen Forumulas as the decryptor:
37.8% chance of success to get a 5-run hulk BPC with: ME -5 & PE 1.
With lvl 4 skills:
43.4% chance of success to get a 5-run hulk BPC with: ME -5 & PE 1.
Swapping out the Stolen Forumulas decryptor with the Engagement Plan decryptor gives:
With lvl 1 skills:
21% chance of success to get a 3-run hulk BPC with: ME -3 & PE 0.
With lvl 4 skills:
24.1% chance of success to get a 3-run hulk BPC with: ME -3 & PE 0.
Looking at current contracts:
1 run ME: -1, PE: -1 goes for about 50m
3 run ME: -3, PE: 0 goes for about 117m
9 run ME: -6, PE: -3 goes for about 295M