Fran,
Already owned a 50 (not the 60) and realize what a fun board it is. But I'll stick to the 8 and 900s for now. If I do anything, I'd unload the 800 for a T2 - maybe the 800 will work. Good luck.
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Yamaha 920 / Yamaha Stagepas 100 BTRs / Senn e935 - LIVE
Roland RD 2000 / Tascam DP24sd / ATEM switcher - STUDIO