My advice for a gaming chair:
1) Go to the bargain section of a furniture store and find a high quality recliner with some cosmetic damage that won't affect the comfort or function.
2a) Use a wireless keyboard and mouse on a swivel tabletop that can swivel over your lap.
2b) Instead of table top, use a laptop keyboard and mount a flat surface over the armrest for your mousepad (my preferred method).
3)Mount monitor onto arm mount that can swing out in front of you while you are in the chair, and swing away from you (presumably over a desk or table) when not needed.
4)Get in chair and tilt back for comfort and swing/tilt monitor in front of you.
Best gaming experience ever, Kinda like the "Floaty chairs from the movie Wall*E" Optional snack table opposite to side the monitor swings from.