Opinion on universal wiring harness

So im planning on rewiring my dash and id like to update the harness and fuse box in its entirety. This seems to be a fairly pricy venture when looking at the complete reproduction harnesses offered by year one and EZ wiring so ive been surfing the net and came accross this 1970 - 1971 Plymouth / Dodge 8 Circuit Wire Harness fits painless update new | eBay Wanted to know if anyone has tried installing a somewhat universal harness and the challenges associated with it. Also if its worth the trouble to save afew hundred. Budget is about $250 right now