planning like scaling alterations, or planning like laying out the peices to utilize as much of a sheet of foam as possible?
Both actually. I have a bag full of spare parts for backing and cushion.
UPDATE:
Sorry for not posting sooner but very busy with work, school, & certification classes. I don't get a day off through all the stuff I have to do. I still have to plan and layout other parts as much as possible. OK enough with the excuses. Here is a pic of the knees.
Should I redo them? If so, which one should I match it to?