how about a quality HID kit and old school 7 inch units with built in turn signals you can use LED bulb with?
LEDs are great for turn signals and torches but anything large scale they lose intensity and turn yellow over time with long use as headlight get compared to spot lights. Then replacement is the only cure which is an expensive exercise for headlights. A 7 inch setup that already has HID and turn signals but doesnt look rice would be the go which brings me to say be careful your car does not turn into a mismatch of old but wanna be modern teen look.
eg.
these would be a lil better than the led ringed ones above, I find those led ring ones are just too ricey and break up the datto lines which are so coke bottle like. These can eliminate front parkers and turn signals like on the ugly datsun 1000 models while 1200 models dont suffer this design flaw they got it right.

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dont think this suits old cars for styling but thats my personal view

these are my fave atm for anything like a 1200, Y or even late sunny, a little flower like :) or exploding water but will compliment old cars
http://www.ebay.com/itm/2-Vintage-che ... 56984?hash=item4af8df32b8