i just picked up a 610 also. not sure on the year but i think early 1980's.
I am looking to upgrade the wheels to a 700c set. any recommendations for a complete wheelset? I like the down tube shifters and I dont mind friction but would prefer indexed. also i want to get a more modern style brake levers and remove the suicide levers.
are these difficult changes? how cheaply can I accomplish this? with limited mechanic skill is this somethign i could do on my own? any general thoughts, component recommendations or info is appreciated. thx