Xeney, please tell me what you are going to do to make yours fit.
I agree that it is much easier to make adjustments to mixte's, but I have one mixte too many and am considering selling one because it is a tad too small. It is a beauty of a bike and in mint condition with no scratches. I might not even know it was too small except that having two others now I can compare the difference.
I put a longer seatpost on it and that made a lot of difference, but it still feels like my angle over the pedals is a little off. I'm curious to know what you are going to put on yours.
"Chisel praise in stone; write criticism in sand."