The hose linked to above is for a stock car and it would connect to the elbow that connects to the throttle body.
From the pictures it looks like you have a modifies SRT6 so I doubt that house will work for you. From the connection on the breather that you have pictured it will run to the intake air tubing. I do not know where that other end connects to on Needswings duel intake but it will be about the same diameter. There is little to no pressure on that hose so you would be fine using a silicone hose to make the connections. Just cut a 5/8" inside diameter silicone hose to length and make the connection. You could even buy red hose to match your trim.
A telephone call, or email, to Rob at Needswings will get you the precise info you need.