I think I will do a minimum clean up/lube and ride a bit before disassemble all the parts. The reason is it's not my size.
I used to ride CTT 49-52cm, My 52cm bike has seat post 2 inch out of the top tube. This one has only little space there. It's a ~22 in (55+cm) bike.
The paramount looks so nice to keep it, may be I will wait for a smaller size frame and swap out all parts. It's wheels are quite heavy anyway.
The non original rear wheel plus freewheel seemed to be ~2kg+. No wonder the total bike is about 12kg (26.4lbs)
If I would keep it longer, I will probably change it to have down tube shifter (I'm not familiar with bar end one)and replace brake lever to campy one.
BTW. I have no idea if the tires are clincher tires or not.