Balance 20 or other peplink option

Currently using an SOHO in my RV “Setup with Starlink on the ethernet WAN - other two on 5 and 2.4 WIFI WAN / T-Mobile internet 5G and Verison LTE home internet as failover”. I would like to load balance “Starlink, T-Mobile internet 5G and Verison LTE Home internet - with all three using hardwired ethernet”. The download speeds of each can vary from 15 to 150 or higher depending on location but normally runs between 40 and 100. I’m looking at adding a Balance 20 before the SOHO to perform load balance and failover. Will the Balance 20 be a bottle neck??? or is there another model to look at?

20x would balance WANs but problem is no wifi wan which i wish peplink would fix

raise it as a feature request. maybe they will do it. im fine losing local LAN AP for WiFi WAN if it cant do both simultaneously.