The PowerBook 165c I picked up off eBay (see previous post) has an internal modem (probably 14.4). So the plan is to rip it out and fit it to my functional PowerBook 160 (the 165c has a very busted screen). If anyone knows whether this is possible please email me.
I also have a PowerBook 190cs with a very dodgy case. I have a replacement case from a PowerBook 5300 which I will transplant (along with the external video card and anything else that will fit).
Now all I need is a few days off to tinker 🙂