I found the radio fully working in a flea market for 2€. :) The WeMos D1 mini costs 3€, the VS1053 8€ (but there are cheaper models). From the original radio, I'll keep the two speakers. Although they're not the best ones you could dream of, they'll do the job for the moment. I may be able to re-use the buttons and rotary knobs (they work as spammers-buttons : each time you rotate a little, it's like a button is pushed). I'll get rid of the cramped screen, as I have a nice LCD 20x4 I2C screen waiting in a box. But this pleather is so nice, and the size is just perfect ! Plus, there's quite some room inside. Here's some pictures. I wasn't lying : it's really a kitchen table. I mean, in which other table would you put a tablecloth full of little cakes ? :D
Some electronics stuff I build on my kitchen table.