Nope, not a Weigle.
This was a regular production model I am pretty sure (or very similar to regular production). I don't even know if the manufacturer did custom frames or not. I don't think of them as a custom builder.
I have seen pictures of one posted on Bike Forum about a year or so ago that was almost identical to mine but with the factory paint.
I paid the equivalent of $240 for the whole bike (hint: I didn't pay in US$)