LED's definitely consume far less current than standard filament or HID
headlight systems.  For now the tradeoff when it comes to LED's is the
purchase price.  For a complete headlight system, plan on a minimum of
$400.00.

The wide gap in headlight aim when using e-Code headlights is likely due to
the ECE regulations that limit the amount of permissible glare from
automotive headlights.  The factory aim of US spec low beams would be judged
as unacceptably high in the European Union.  Since most drivers spend the
majority of their time on low beam, it makes the most sense to aim the low
beam where it is most beneficial.  A set of auxiliary driving lights can be
added to come on automatically and fill in the gap when switching over to
high beam.

Here are a couple links to info about Vanagon headlights from my website
with more info on basic upgrades as well as a few thoughts on LED/HID
options:

https://sites.google.com/site/vanagonheadlightrelays/helpful-information/len
s-bulb-upgrades

https://sites.google.com/site/vanagonheadlightrelays/helpful-information/led
-hid-lighting

On your bike, you could use a delay relay to avoid the headlight turning on
while cranking.  This one is variable from 0-38 seconds:
http://tripageled.com/store/index.php?route=product/product&product_id=53.

Hope that helps,
Jay Brown
'85 Zetec Westfalia