Sending PMs, making public solicitations, are both "bad form", a mis-use of people's time. To us, the importance of your task is of no real interest. It is something that you/your organisation should have thought about and planned for much earlier. If you have something you are "keen" to see done at short notice, locate someone (even here
) who can do it, and pay them.
Any good effects of your effusiveness are not long-lasting, by the way.