Wilsons Sandbox

Riding with the stock shield is OK but produces some noise I'd like to eliminate on longer rides. Without the shield is more quiet but puts more pressure on my chest. WAHHH, WAHHH, WAHHH. Tried the Clearview +11 (6'2", 34" inseam), less buffeting but too much noise. Thinking of the Parabellum shield but can't find any reviews when I do a search. Anybody have one?

I'm getting ready to order cam & balancer chains. Looking at doing the continental divide trail this summer and thought this might not be a bad time to freshen up the motor(34k mi.). Can anyone tell me what other parts are needed when doing this?