TimeTrex Time and Attendance

I'd like TimeTrex to be able to print onto a check blank like this 800L one linked below:

http://www.mysoftwareforms.com/itemInfo.asp?item=12662

Has anyone made their own custom check templates?

Looks like I was able to modify two files and create a third so that 800L is an option in the list.

timetrex/classes/modules/pay_stub/PayStubFactory.class.php
timetrex/classes/modules/pay_stub_amendment/PayStubAmendmentFactory.class.php
timetrex/classes/ChequeForms/800l.class.php

Hopefully I create a patch in the future. If anyone is interested, ping me.