I use the Iwata LPH-400 full size gun at the moment and I want the LPH-80, by all reports they're a awesome gun. Don't think they come with a 1.3 nozzle though. From everything i've seen you want the E4 air cap with a 1.2 fluid nozzle. Give you up to a 5.5in fan.
Also the LPH-80 is classed as HVLP ( It's actually LVLP ) and the W-100 and W101 are high pressure guns, so when you get used to the setup and spray technique of the LPH-80 you'll find you have a lot less overspay and use less matarial saving you money in the long run.