This sounds like a very interesting project that I would like to work on, but unfortunately the payment is not guaranteed. Making the payment guaranteed will draw higher quality designers giving you a better chance at receiving more quality submissions. If you decide to guarantee the payment please let me know.

I just guaranteed this project. I hope you take a shot at it.
Thank you!

Thanking you for the invitation to participate on this project, please consider giving feedback relating Designs #10879284 and #10879283.
Also invite you to communicate any changes you might require.

Kind Regards,
Francisco