First off , it is your bike to do with what you please. If it were me , I would take the parts you need for your other bikes and move it along. As you stated , it is not an original untouched bike so no guilt . The frame and fork may be of some value to someone to build up as they see fit , or change the parts and put the parts that you took off your other bikes on this one and sell as a decent rider. I have a friend who got one of these that was all original , a real beauty in Mink Blue . The paint was very nice and I thought he would ride it because it was his size. The next time I saw it , a couple weeks later, it was a frame and fork and the parts were sold off separately. The bike netted a healthy return for him but it was hard for me to understand…..but it was his bike and he is a bike flipper and he knows how to make money as a side line .