the repop hump will work,,just like in the 67 up you will need to trim and fit,or find a donor car and cut it out,,what type of yoke are you going to wild cat for ??all that stuff is available with out going to a junk yard,,,
as for your hood latch,hood pins would be the quickest and easiest way,,but you could always convert some other type of latch,that top bar that runs across with the oval hole,where the latch hook goes thru,could be converted to a cable sliding latch,go to a junk yard and look at more modern cars you may find some thing,,also look at some street rodders magazines for ideas on things like that,