Those head lights would be HELL to tackle without the right skills man!
If your serious about those headlights you better have patience with your car!
I have a 1302 and will be doing a headlight conversion (undecided as of yet) and actually as I work on my current project now (69 standard) I am thinking about keeping the headlights stock...you can always get tricked out 7" headlights I am using a set of blakc headlights on the 69 its gonna look sick man!
GOOD LUCK!
John