My Daedalus is actually a bit bigger, according to stargate wiki. It says it is 200-225m long, and mine is 300m, but there\'s been no confirmation that it is 200-225m. I\'ve even seen numbers around 500. So in my opinion, 300 is perfect for the Daedalus, especially if the Prometheus is going to be 195-200m long.
So bottom line is, yes, they will have the same scale.
Thank you for the compliment, I really appreciate it.