Congradulations on your aquisition of the Dynasty. Very good coach for the price point of the product.
Get the pipe fabricated from stainless stel tubing. Have it bent at a shop, then trim to length needed.The hoses can be matched as close as possible at NAPA. Some may have had sucess in acquiring part #'s for the hoses, but, many have simply matched as close as possibel, and trimmed to satisfy the configuration needed.
The kit from Source is the way to go.