ARD kickstart, uid lower than 500?

So this is a fun revelation. Using the createUser.pkg that akinspe created (thanks man, works quite well with a few minor tweaks), I spun some InstaDMG images last night to test this morning. Leopard and PPC-Tiger. Both deployed fine and each test workstation boots as expected. I selected a uid of 499 for my local admin / hidden user account. Then ran the defaults command on /Library/Preferences/com.apple.loginwindow in a launch daemon to actually hide the 'less than uid 500' users. What I'm finding is...the account is now hidden from ARD too. Ironic. So, what to do - resolve to not use a hidden account for ARD purposes? Or unhide this local admin account? Seems a little surprising that ARD won't recognize this sub-500 uid account. Anyone think of way to make kickstart/ARD work with a uid lower than 500? Feel free to correct the error of my ways.