Bulbophyllum mastersianum - culture questions (mounting, light levels)

[Lacie]

Hi All! I currently have a Bulbo. mastersianum on it's way to me. I bought it from Jim Marlow who wrote on the website that it can stand drying a bit between watering and that they like higher light, approaching Cattleya conditions to flower. I don't have any Cattleya, but from what I understand they like higher light than most Phals and Bulbos. Because of this I was hoping to mount it, and put it in a room with higher light levels than my other two Bulbos get (they are on a shaded north windowsill - I've only had them a few months, haven't flowered for me yet).

So my questions are:
I bought the B. mastersianum hoping to mount it on a cedar slat mount which I am planning to cover in (well rinsed!) coco fiber and then a layer of sphagnum for moisture. Do you think it will be happy this way? Also with the sphagnum and the thin little Bulbo roots am I just setting myself up for a nightmare when the sphag breaks down and I need to remount?

As for light, I am planning to place it about 7 feet from a south facing window (shaded by sheer current). The room stays pretty bright all day, and the plant would get filtered "direct" sun (i.e. light falling right on it, but through a curtain) in the late afternoon/early evening. It would also be shaded a bit by another plant, so it would be more like dappled light conditions. Does this sound ok? The room is fairly warm during the day (winter temps probably 70 day, 65 or a bit less at night; summer is always hot and humid because I don't have A/C )

Thanks for any advice!