Repot and Splitting up a phal mess.

[phirephly]

This plant was purchased about 3 years ago and neglected on my window sill. It blooms every year (usually more than one stalk of blooms), oozes sticky, but is now toppling over it's pot. I've had to prop it up on various nearby containers, such as the plastic cereal container it's leaning against.

I'm not sure how to split it up, afraid I'm going to kill it, and confused about what's to be potted with the new keiki plants. Seems to be majority air roots, so what part of the new plants is actually potted? Very confused. Here are the pictures. I hope nobody cries.

In the past month, it's started sending out a new flower stem from the upper left plant. It bloomed with 2 stalks in July and about 15 blooms total.