I decided that this week was the week to buy all of the things I need to get my DT3 finished up and ready to go for next summer.  So I am buying a whole new seat assembly, a battery, headlight assembly, and tail lights.  I have everything picked out except for the taillights.  I can't decide if I'm going to go with turn signals or not and I cannot really find anything online that isn't LED that I like the look of.  I'm just wondering if anyone knows a good place to look or just has any ideas of a good taillight brake light assembly that look nice?  

Are you keeping the stock steel rear fender? I have done this to a couple of bikes I have had. (Still have this one available.) TY250/IT175 taillight takes a 2 filament bulb, so tail and brake light. 

Another style that was 'in vogue' back in that era was a folded over rubber mudflap kind of affair, with a smallish Lucas light assembly attached. The rubber was to isolate things. Might have to fabricate that yourself, but should not be too tough to do. 

 

Motionpro has the rubber enduro taillight license mount...

www.motionpro.com/product/08-0035

YES!! That is what I am thinking about. You got one of those rubber flaps, and bolted on one of these Lucas-style lights. 

/www.ebay.com/itm/EMGO-62-21500-Pre-1965-Lucas-Style-Rear-Tail-Light/293188592902?epid=171163531&_trkparms=ispr%3D1&hash=item444366e506:g:tzgAA

Gives you a vibration isolated mount and a decent size light with both filaments. Probably mount up to the  existing holes in the steel fender too.

I am planning on using my original fender.  Those lucas lights look good and I'll probably order one of those today, I think I've decided to go without blinkers as well.