I ordered some M5 thumb screws off of Amazon today. I look forward to addressing this rattling issue this weekend. I find it a bit hard to believe that the rollover valve is creating this much noise, but I sure do hope this is my problem that needs to be resolved.
In case anyone needs to buy the screws. They are available through Amazon Prime.
Kipp 06090-05X16 Steel Knurled Thumb Screws with M5 External Thread, Metric, Black Oxide Finish, 16 mm Screw Length (Pack of 10) (Pack of 10)
https://www.amazon.com/dp/B013IA7TQ6/ref=cm_sw_r_cp_api_z3YszbZDQZWRY
