Appeal Design Credits After Construction Review has begun?

I have a CS 2009 project where 2 credits were denied in the Design Final Review. We are sitting at 42 points if all goes as planned. While I can appeal one of the credits and pursue it through Option 2 instead of Option 1, I need to understand if it's necessary. If we achieve all the credits as planned, we should be fine. If we lose 3 other points during the construction review, we will only be at 39 points. Can I appeal a credit that was Denied during the Design Final Review during the Construction Review? I'm afraid that accepting the Design Final Review and skipping the Appeal will ruin my chance of appealing later. Will it, or will I be able to appeal the denied credit later if necessary? Thanks, Garrett