ther is a 1975 cb 350/4 for sale nearby for cheap. the question is, are any parts interchangeable with my 76 cb550k? the 350 doesnt run but looks in good shape. everything on that bike looks the same as my 550. the seat,handlebars,gauges,etc. all look the same. are they? is the 350 worth the parts on it? dont want to go to a smaller bike but could use many of the parts if it will work. any suggestions?