i miss 63xc.com very much & i know dion from mtbr & have always liked that bike a lot.
it is built right & is off-road capable. unlike you he has money, knows what he is doing & btw...it is ss not fixed. he would never let on exactly what that frame is, i think there was a nashbar frame like it several years ago, but?
anyway, you can find cheap double-top tube cruisers in every bigbox store.
so the question is: if you want to make something like one of those into a fg...
since you are broke, how will you afford to buy & have put together the rear hub/spoke/rim build to do what you want & is it really worth the time & effort to do it on the crappy bikes you were looking at?