>   Alternatively, how would someone who has the Motif libs for 
>   NetBSD/i386 feel about building and making a binary available?

I've made one for NetBSD/i386 1.2_BETA. Looks like that SWiM has many
bugs, I'm not able to save figures. I use xwd to save... :-(

If you want it, try 
http://www.prc.tsukuba.ac.jp/tmp/gimp-0.54.1-netbsd-1.2beta-bin.tar.gz 

I'm not going to keep this here long. This is just binaries so you
need to get documents from somewhere if you want.

---
Naoki