No. Or maybe. I have thought about it. Back when the SE4150 was in production.
The first thing you need is a MCU that has a 4 bit SD interface. Getting to be fairly common these days. (The Teensy 3.6 I have will do 25MB/s transfers so the slow step is not the data transfer but the SD internal operations.) Skipping anything resembling a file system is recommended.
Then you have to get the serial bit stream into the MCU. I suspect that an SPI port (using DMA) can be pressed into service here. If not, then some serial to parallel glue will be required.
With luck and a good DMA system, the MCU will have very little work to do.
I remember reading about some other efforts along this line:
http://unreasonablerocket.blogspot.com/2015/07/gps-on-several-fronts.html