Vintage Race prep, Prep to circa 70 specs Options

[914werke]

Folks I could use you help.
I have been lobbying to our local Vintage sanctioning bodies in the Pacific NW (SOVREN and VRCBC) to allow 914's to run in thier events, and have evan recently completed SOVRENS race school only to discover that this club is more about collecting historically documented and/or acurate reproduction race cars, than acutally racing them. (IMG:style_emoticons/default/mad.gif)
Apparently this is a debate that has been fought long befor I came on the scene, one of arguments being that if you let 914s run then you have to let 240Z cars run and there goes the neighborhood! (pass the grey poupon please!!)
Anyway, N. of the border (BC CAN) they seem a lot less uptight and said yes they wouldnt ask to many questions (or look to closely) If my car was prepared to circa 1970 trim (that being the cut off for Vintage status) sort of "dont tell, we wont ask" approach.
So what was accurate for 70?
From an as raced standpoint, the only documented heritage I can find is the 914/6GT & LeMans?
The only four that was available was a 1.7 Tailshifter, correct?
My tub is a 74 so to make it appear as close to a 70 model as possible I know need to change bumbers, the interior is gutted so that not an concern. What about wheels?
The color is white, was that offered in 70?

You get the Idea

[URY914]

Don,
Here it is recently