custom sim rig profile hinge, get it laser cut from service like send cut send, .135 inch Steel is what I used, 

print the spacers, to keep metal from scratching paint. 

parts to make

2 sets required per side arm,

m6 flange nut. https://www.amazon.com/dp/B07SFM51P1?ref=ppx_yo2ov_dt_b_fed_asin_title&th=1

m6 shoulder bolt.  https://www.amazon.com/dp/B0DP72KXYJ?ref=ppx_yo2ov_dt_b_fed_asin_title&th=1

m8 washer. https://www.amazon.com/dp/B0BGH6BYSL?ref=ppx_yo2ov_dt_b_fed_asin_title&th=1

adjust tension on shoulder bolt to allow tension but yet pivot easy.