Trellisdesk into wordpress plugin

We are working with the helpdesk from Trellisdesk [login to view URL] and this system works for us, with all it's features etc. But we need it to be built as a wordpress plugin. The main reason it's the not sharing the same login so clients need to register twice. If you have experience with trelissdesk and are able to make it a great wordpress plugin, please reply asap and lets start! We have more work in the near future....