On my parents farm ran with a Massey 44, LA Case and a MM 5-Star throughout the 60's and 70's.  Our neighbors had these nice quiet Olivers, 70 std, 88 std, Super 88 with home made FEL (better than most factory units) and and old 99 running the chaff blower.  I spent many hours running "OLI" (the 70) pulling self unloading feed wagons from the fields for them.  BTW New Holland got the idea from these people who had them working for years before a NH mechanic came to repair a baler and saw them working the other field.  Running Oli I learned many things, you can pull a 8'x9'x30' wagon full of dry chop feed out of the fields with a 70, getting all the way to 6th gear without ever touching the clutch <!-- s;-) --><img src="{SMILIES_PATH}/icon_wink.gif" alt=";-)" title="Wink" /><!-- s;-) --> <!-- s:wink: --><img src="{SMILIES_PATH}/icon_wink.gif" alt=":wink:" title="Wink" /><!-- s:wink: -->  but you had better plan your stop as it can get a bit hairy if you touch only one wheel brake!!!  
Since then my dad has picked up a Super 55 (1955) which is still looking for a grill and top cover.  I am trying hard to corner the neighbors 70 and a Hart Par / Cockshut 90 (so the rad says) that he has too.  As well as one of his RC Case tractors in great shape.   He is getting older now so he may be more willing to part with his beloved tractors.