OP; Not sure why you are fixated on Tange branded... A quick search on ebay or amazon will yield a very long list of replacement chromo forks. Many have good pix, a fairly complete set of dimensions, and selling companies with phone numbers or at least email addresses to pose questions. Many are in the $30-40 range. I have used a lot of these for general replacements and almost without exception they are good quality forks. Not too hard to find some that look just about like the bent/failed/broken one for an attractive repair...

Generally speaking, I have found that if the dropouts show as poor or crappy or just stamped, then the fork will be also the same. Recommend to not buy those. No need to when good ones are easy to get.

Hope that helps.
/K