Be careful about simply adapting the T20 starship rules. Spycraft has their own effects based gear design system. Which is completely unlike the component based HG/T20 starship design system.
The effects based construction system is one the things I dislike about Spycraft and D20 Modern. While effect design sytems are quick and low math, Traveller fans prefer to have hard statistics with their designs. This is difficult to achieve with this style of design system.
Two other items in the plus column for Spycraft: The class designs are better done. They are balanced and put together using a system to ensure they work consistently. I like the Advanced classes have no prerequisites other than "be 5th level or above".
The skill system is better thought out, better balancing the difference between a skill and a use of a skill. This is another system I'm seriously thinking of stealing whole cloth for T20M.
The effects based construction system is one the things I dislike about Spycraft and D20 Modern. While effect design sytems are quick and low math, Traveller fans prefer to have hard statistics with their designs. This is difficult to achieve with this style of design system.
Two other items in the plus column for Spycraft: The class designs are better done. They are balanced and put together using a system to ensure they work consistently. I like the Advanced classes have no prerequisites other than "be 5th level or above".
The skill system is better thought out, better balancing the difference between a skill and a use of a skill. This is another system I'm seriously thinking of stealing whole cloth for T20M.