everyone has gave you some good advice;;not much to add but if not sure of yourself for your first build then here is a ideal you may look at;;get everything fitted and squared up good.tack weld it real good.then see if you can find someone local that is a good welder and see if you can get them to come over and watch you do the welding.this way if you are doing something wrong they can stop you and show you the right way.sort of like teaching you as you do your own car...everyone on here i'm sure will agree with me..there isn't a better feeling then doing it yourself and when all done with car and someone says to you WHAT A NICE CAR YOU HAVE;;WHO DID IT?you can say I DID;and be proud of it.
IT DOESN'T GET ANY BETTER THEN DOING YOUR OWN BUILDS;
PS;;;after you do one then next one comes a little easyier and even more and before you know it you are helping out another first time builder;;it's a great life;;building hotrods and choppers;;nothing better