Yeah, you'll need to use one of the smaller installs though, not amigo2rc??
With 16MB RAM you should be able to run X. Use phnx81bb if you have little RAM- that's Slackware 8.1 compatible with blackbox windowmanager. about 100MB install.
Or start with 32MB91 and add X-base, X-fonts-misc and a windowmanager
X and fonts for 9.1 are about 25-35% larger than for 8.1
Just add Slackware packages from the appropriate tree and turn it into whatever.