Pseudo bulbs in S/H

[sept2256]

I need your help!
I had a fantastic cambria that gave me a lot of satisfactions but, probably for the high temperature (28 – 33°C) and for the old bark, the roots died and the pseudo-bulbes started to dry. In the pics you can see what remained after my drastic intervention: 2 groups of three pseudo bulbs without roots, but with a healthy rhizome (cut in two parts)
In your opinion I can try to save them in S/H or it is an useless waste of time?
If it is the case, what I have to do? Should I put the pseudobulbes directly in S/H or it is better to maintain them in humid condition (sphag?) and wait for new roots?
Thank you for your advice,
Pierangelo