I don't even know what terms to google to find this answer. Making a custom dash, just need some bulb covers. You know, like 2 orange/yellow ones for signals, green for neutral, etc... Who sells them?
This will get you started, click on the pictures on the left and drill down into the specs. http://www.digikey.com/product-search/en/optoelectronics/optics-leds-lamps-lenses/525154?k=led http://www.mouser.com/Search/Refine.aspx?Keyword=lense
I recently ordered a set of LED indicator lights from this eBay seller: http://www.ebay.com/itm/260781650256?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649 I ordered a blue one for high beam, red for oil pressure, green for neutral, and two yellow for turn indicators. The only problem is that they're coming from China so it takes weeks to arrive.
Indicator lamps, any decent sized electronic supply store should have them or can get them cheap. Mcmaster Carr also carries them. If you have a way to drill real clean and straight holes flush mount led lens look very nice
My "best way" for drilling these types of holes is to use a unibit: For plastic and aluminum, harbor freight sells a 3 piece set that has held up for a few years. I also have a couple Irwin ones that I use on steel sheet metal holes. I got those first many years ago so I just never had the need to use the HF ones on anything other than plastic and AL. These are nice because they do not grab like a twist drill does when breaking through fragile material, and you can use them in a hand drill that is pretty much unsupported.
