In general we try and stay away from specific recommendations for printers since that could encourage
self-promotion.
You could try posting a service request in the service request section of the forums once you've made fifteen posts, but to be honest I doubt you'd have any luck (belt/roller printing has come up on the forum a few times and no member has ever mentioned having much experience with it - you never know though, and feel free to try).
Other than that you could try asking at the
screenprinters.net forums; hopefully someone can offer you their services.