I've been continuing to research this topic, although I've had little success so far. One link I found to be interesting is a discussion about openBSD and setting up a sparc 5 to be bootable over the network, the link can be found at:
http://legonet.org/~griffin/openbsd/
Although there is something to be desired with the info it gives... the link specific for the topic is available when you click on:
Netbooting the OpenBSD/sparc install on a Sun SparcStation 5
Still interested in some info out there!
I think I'll try to use a serial console, although I have *very* limited experience wih that.