Well, with all the pandemia stuff going on I was not able to just go and buy a spare relay and much less a membrane. My options were use a transistor to replace that damn relay or make a new keypad, as it seems very annoying for me to design circuits with transistors I opted for the second. I grabbed some Futabas, some keycaps and wired the shit in the microwave. Works very nice, I even like it more than that flat piece of crap. Now the last thing to do is build a proper encasing that match the 80's wood-kitchen thematic.
I mean, just look at this
