Try one of these been there done that, they have both 120 to 140 mount;
https://www.amazon.com/dp/B01HQ8KOIG?psc=1&ref=ppx_yo2ov_dt_b_product_details
https://www.amazon.com/Bitspower-Premium-Reservoir-Mount-Bracket/dp/B07B7BVWFM