First off, for vintage trades I always want to provide and receive scans or photos of the cards since grading is so subjective, in my experience. That said, we may be able to cobble together a bigger trade.
Here are my wants from 60 to 74 just to see if there are any matches with your Cubs - I warn you these may be heavily loaded with Braves wants - so if you have a Cub starting player card not in these lists I will check to see if I do need it or if I need an upgrade for it (below these want lists are my "supposed" 1970 available cards - which I will have to double check):
1960 Topps:
50,55,59,104,153,159,275,377,417,483,530
1961 Topps:
2,63,84,120,141,148,330,335,355,382,388,429,430,501,589
1962 Topps:
1,6,14,20,21,25,30,31,33,40,45,70,73,107,116,130,158,167,170,180,186,188,194,211,218,
243,265,288,318,320,351,353,356,360,361,370,372,380,385,387,388,389,393,400,408,413,425,
429,430,459,460,490,499,500,505,509,518,520,527,538,541,544,545,563,565,590,594
1963 Topps:
24,25,33,45,46,60,62,74,91,109,120,126,141,170,185,196,227,244,245,252,255,
268,270,275,277,297,298,317,320,347,369,380,390,395,398,400,401,403,429,433,440,446,
460,472,525,544,547,550,554,565,576
1964 Topps:
35,43,85,133,146,182,208,225,230,243,247,285,314,331,346,351,375,378,399,412,429,
439,446,449,454,476,500,506,513,522,523,534,540,541,547,551,563
1965 Topps:
15,60,70,78,110,119,121,125,180,198,208,230,246,256,270,276,320,327,340,344,351,355,
368,377,392,395,405,407,415,426,431,441,447,461,463,467,478,487,491,500,
502,519,530,540,542,585,591
1966 Topps:
96,125,132,275,298,326,346,356,371,379,380,381,406,408,418,446,456,500,544,541,542,558,570,575
1967 Topps:
35,45,188,245,250,280,304,326,329,355,417a,417b,421,435,456,474,479.484,485,490,
528,530,546,547,566572,604,605
1968 Topps:
25,30,40,78,240,256,257,275,330,360,408,470,491,497,520,527,528,540,550
1969 Topps:
100,282,300,355,489,501,514,542,565,568,590,627
1970 Topps:
160,206,500,555,576,668,687
1971 Topps:
194,400,494,587,623,709,717
1972 Topps:
149,171,195,260,299,300,318,333,351,380,401,451,469,516,540,601,675,740,758,764,787
1974 Topps:
1,2,3,4,29,45,71,93,164,183,227,244,272,298,346,374,439,457,483,504,526,544,570,591,614,634
Here are the cards for 1970 which I will need to double check:
1970 Topps:
271,292,298,319,345,364,378,384,390,393,395,397,402,405,406,408,413,414,424,439,
440,446,447,450,453,459
Thanks.