[RERomine]

Repair points carry over from battle to battle, but the maximum that will carry over is 10,000. Repair points can be converted to support points at a rate of 75%, i.e. spending 1,000 repair points will get you 750 support points.

As to the other question, yes. When you delete a unit from your core, you get full points for it, so your calculation is correct. Doing this, you can raise your total repair points over 10,000. Somewhere along the line, you might lose the excess, but I just tested it and it is there at the beginning on the next battle so it can be converted to support points if you choose to do that.