Thomann's T-Bone series has some stars in its ranks and you can easily chuck out all the active parts and replace them with quality components, so that all you are using is the capsule and the housing.
The housing on a mic is more important than most think, so I would be tempted to bin that as well.
Some components are very expensive. For example, a Lundahl transformer for a ribbon mic costs £56 (if my memory serves me correctly) and that is more than many ribbon mics! But semiconductors and caps are relatively cheap, so the only limiting factor is the capsule. At 16kHz, the Lundahl gives you an extra 6dB, compared to a cheapo Chinese job. I have done research into ribbons, but I have yet to dig about with LDCs and SDCs. Too little time!
I'd be tempted to have a go with the T-Bone SC140, just to see how much of a difference just the active components make.