I have a super solid 29 model A that I have yet to begin but plan to make a rod out of it....also a 1973 Ford Econoline Van that Im thinking of using as a donor vehicle...my question is before I kill my van for parts (still a good daily driver for me) how much from the van can I use & how good of a fit will things be? Van has a 302, 9in rear & front straight axel w drum brakes. ...Figure I can save some $ by using what I already own. Anyone used these vans as a donor before?