Very nice! That appears to be an early '71 due to the pedal eye plugs I see on the TA crankset. I see the original freewheel was one of the missing original parts. That is significant in that the 1971 models had a unique freewheel and the one you have selected to install was used from '72-'74. The Sports Tourer only used Model J (J = Japan, made by Shimano) freewheels, however for '71 only they used a different freewheel body with a screw on outer chainguard (aka top protector). For '72 and later the freewheel body and top protector were changed to a snap-ring installation, while the cogs remained the same. For '75 only the cogs were modified to have cutouts reducing the weight.
