My friend towed my car with the parking brakes on and completely smoked them.... Fortunately I have a spare set from the GT-Four swap, but they are specific to the ST205. I know the Brake calipers are bolt on matches between the ST204 and ST205 (but requiring different discs). This is probably unlikely, but does anyone know if the ST205 parking brakes will fit ST204 discs?

I don't know the answer to that at all, but my guess would be if the discs for the two are different, the drum and/or cables for the parking brake would be different too. However, if the shoes from the spare are good, perhaps they'll fit on the "smoked" ones. That'd be a lot easier than swapping out the whole thing anyway.