I used a pair Harbor Frieght Support/Cargo bars, https://www.harborfreight.com/2-in-1-support-cargo-bar-66172.html

Combined with a Small Rig camera clamp, https://www.amazon.com/gp/product/B00CSMCPKQ/

The base stations have standard camera mounting holes so they clamped to the poles and just extended the pools from floor to ceiling in the corners.

SmallRig Super Clamp Mount with Mini Ball Head Mount Hot Shoe Adapter with 1/4 Screw for LCD Field Monitor, LED Lights, Flash, Microphone, for Gopro, for DJI Action 2, for Insta360 - 1124 https://www.amazon.com/dp/B00CSMCPKQ/ref=cm_sw_r_cp_api_i_5VNPAGPC4YCZZWJ95K58?_encoding=UTF8&psc=1