Heated bed mosfet failure, relay replacement?

Hey! My old shaky one blew its bedheater mosfet, ordered new one, but "fastest" shipping seems to be about 1.5months here...

So I got an idea, I have some 30A 24VDC automotive relays, and I know these things will last even after some beating.

So, does my old MKS gen l v1.0 board go ballistic if I just use one relay and flyback diode on its coil to protect it, before I get my new mosget board.