Epicattleya questions/repotting advice

[kimstwin]

I bought this large orchid and later found out its an epicattleya. I don't know much about these orchids. My collection consists of phals and oncidium alliance plants mainly with a few cattleya types.

I want to repot this plant, but all my mixes are a blend of coconut husk chips, charcoal, and perlite. I usually use plastic pots. I think this plant likes it drier and sunnier than my other plants.

The flowers are waning, and I'm planning to repot when blooming is over.

Should I get a different mix? Will a plastic pot be ok?

The largest psudeobulb is 8in tall with a 20in leaf. It's a much larger plant than my others.

Any input/knowledge pertaining to these types of plants is welcome.