Looks like this question was 3 years old. Freshdesk has come a long way in past 3 years. I will recommend trying Freshdesk, with their new market place it opens up possibilities. If you need any help with Freshdesk, send me a note or call me.

I run CloudChoice we resell for Freshdesk. I agree with both Chris and Mike. Given the SaaS licensing model, you typically setup a recurring commission. It varies from (10% - 35%). The percentage can vary depending on the expertise of the reseller. If the reseller can handle product demo, provide first line support and on-board clients.
You will have to create other revenue opportunities like implementation/training for the reseller as the recurring revenue in the SaaS world is not significant. Hope this helps, give me a call if you need further assistance.