I have swapped all my bulbs to LEDs on my Gen 1 except for the turn signals, probably won't bother with them as they only pull juice when on and should last forever.
For the headlight, I went with the simpler, cheaper and less wattage ADV Monster H4 stores.advmonster.com/h4-led-headlight/?src=prn#ProductReviews
It only uses 20 watts, and is noticeably brighter than stock. The Ida biker one is brighter still, but has a fan and cost more $.
Between the 35 watts saved on the headlight and others who have measured reporting another 11-ish watts saved for the other always on bulbs (instrument, tail running light, license plate), freeing up ~46 watts is pretty good for about $100 total.
Here's what I used for the brake light: 1157-R45-T 1157 Red $24.95, and the license plate: 67-W15 Natural White $6.95. The others I used were posted above except I went with amber color turn signal indicator..