The bypass tray will allow you to print up to 300gsm if that is thick enough for your application.
I would recommend requesting a demo and bring the stock that want to use with you along with a file that is representative of what you will be running. It may be sufficient for your purposes.
Check and see if the registration will fits your needs. The bypass tray will move a lot from front to back. Do more than 10 prints in a demo first.
Also just ask for a CED.