The seat on my dyna is getting a little rough so i've been causally searching around lately. In the used market there are a ton of later model seats and I was just wondering how much of a difference from my 91 to the say early 2000's is there? Are the mounting parts interchangeable? would it be feasible to be able to put a later model seat on my 91? I'm not opposed to cutting or welding if need be but if it's too much trouble it might not be worth it.