My first mount - Advise nedded

[rbarata]

Any of my orchids is mounted but this time I think I will do it, mainly because I'm being forced to do it. So, this is my first mount.

The plant is an Oncidium (don't know which one...see below a photo of the flowers). It has been growing really nicelly and blooming consistently every year in the small pot shown in the photos.
The problem is that it is growing horizontally which is causing some problems, specifically the pot is now too small. Two weeks ago the pot fell off to the ground, due to a strong air draft and most of the medum came out of the pot. Now the plant is completely unstable and I needed to put, in this case, a can food to support it (that was what's available at the time ). Otherwise it would come out of the pot.

Anyway, I'm not sure if this is not a good time to mount it... most of the roots (the long ones in the photos) grew while I was on holydays) but there still one or two small ones growing. Also, it is blooming right now. I can't wait for the blooms to fade because it will probably happen only next year (these blooms last for months).

My intention is to put it in a vertical position in a cork plate, tied with some gardening wire and covering the roots with moss. I don't know if this is possible but inside the pot there is a huge root ball...maybe I could cover with moss only this root ball.

So, sugestions needed. Thank you!