It turns out I was wrong in my initial post, the Sunfire280 is running Solaris 8. They had tried an upgrade a couple years ago to 9 and ran into many problems with CVS and decided to leave it alone....
So, I'm trying desperately to get Solaris 10 installed on a Sunfire V120 without an optical drive. I have till close of business. I am not too familiar with Solaris.