Added the udhcpd to the busybox setup, and have the process to setup a dhcpd server in those cases where one isn't available.
On one system, you manually setup the nic with
ifconfig eth0 up 192.168.0.1
Then start the udhcpd server with
udhcpd

It uses the example udhpcd.conf in the /etc directory, and basically gives out IP address in the range of 192.168.0.20-254. Other options are set, but don't do much. nano can be used to edit if some other setup needs to be done instead of the defaults from busybox example.

Thinking about modifying the regular script that gets IP via dhcpd to perhaps prompt to automatically setup IP and load udhpcd if no other dhcpd server found?

Will probable release this as 0.50 with latest alpha being 45 so far.