Samco bend is worth £45 if you sold it on here. If you get a standard airbox and elbow its easy to swap.
You have 2 options:
1. Fit the standard airbox onto the samco hose (you may have to trim the samco a bit as mentioned above)
2. Fit the standard elbow (do you have one?), then you will need the pipe from the breather outlet on the back of the engine to the standard elbow