What diameter are the DP pipes where they meet the S pipes
If they are 40 mmlike the oem setup, you can run Arrow S pipes & Arrow cans. The S pipes are like $180 new...... I have a used set you can have cheap if you like, no scratches & carbon heel guard.
You might also be able to buy just the Arrow cans & modify the S pipes you already have.......the Arrow cans are 50 mm so if the DP S pipes are smaller I'm sure you or a muffler shop could add a spacer. Not too sure on the angle of the mounting bracket but I bet it's close as they both use the OEM mount a the angles look similar.
Let us know how it turns out
ps Why not sell the DP & just go full Arrows
IMHO the routing of the Front cylinder pipe on the Arrow system is much tighter to the motor & cleaner looking.