berlinator

before i bought my berlinetta the guy had left it out with the window partially down, which screwed up it digital display. basically the whole thing is messed up, and not all the buttons work. my question is can i possibly fix this or should i just get a new gauge cluster. i was looking into the ones covansclassic puts out: click here

im not exactly certain if this cluster will match up with the digital loom. will it? i might be forced to get a whole new wiring harness, because of the condition of engine/dash wires, with that in mind should i still be worried about it connecting togather?