Second Avandesande & John on simplicity. For some of my older "thin" negatives a 25 watt bulb will work, but it sounds like you will need a bit more if you have platinum films already. A flood lamp from the hardware store in a cheap spun aluminum reflector will work just fine. Azo will develop in any developer. Dektol will give you cold prints, Neutol WA is great, amidol is best if you need a water bath for contrast control, choose your poisin. Looks pretty silly to have my lamp clipped on to the bottom of the enlarger, but this is how I print with azo.
A simple setup in your bathroom will be just as good as a darkroom, but not as comfortable. Your prints won't know the difference. Who knows, perhaps you will look back on those "bathroom days" as the start of a new adventure. Good luck, want to see the prints. tim