Are you sure WBAllocFast is intended to work with 1.3? I'm trying it now and only getting crashes. It says to start it before iprefs, but there is no iprefs in my startup-sequence.
That said I have four startupsequences. I just installed from floppy and have:
Its a bit of a mess. Iprefs is nowhere to be found
Im pretty sure I'm Workbench 1.3'ing wrong, but I don't know what half of these 1.3 startup things do. I'fve spent all my time in 3.1 and I have to say it's pretty different. I did manage to get snoopDOS running but it gives no clue as to why Settlers isn't starting (95% of the time). It just notes that I started it and then that a "CD .../Settlers" after the program fails to load.
I've been playing around a bit more now, and several games that require 1mb ram run just fine. Colonization and Wonderland. Settlers appears to be a bit "difficult".