I'm putting an a-500 in my Dart, once I get the fit right I will make copies of the cross-member and offer them for sale. It should work with the 500 or the 518.
BWDart.... I realize this is a really old post from you but did you end up trying the A500 swap? I have a 73 Scamp 340 and currently working on that swap myself. Thanks for your time
