Two ways to stop repeating yourself: sell a bundle as one thing, and let the system work out the tasks an order implies.
Bundles at a Set Price
Package services together at a bundle price, so a common combination is one selection rather than four.
Tasks That Generate Themselves
Task generation rules read what is on an order and create the production tasks it requires, so nothing is forgotten at intake.
Percentage Rules
Rules can apply a percentage rather than a fixed amount, based on what you choose, which handles the pricing most shops actually use.