Where do i start?I hate typing!
Do not drill holes anywhere unless you wish to change roll centres.
Do not lengthen or shorten top or bottom arms...same result.
All existing pivot points need be retained to apply correct geometry,and believe it or not factory geometry on a B10 is not too bad.

Camber and castor should only be achieved by the use of shims at the top tower,additional caster can be found at the lower radius rods,but not advisable as it can alter the wheelbase as well and you can have fouling issues or a longer wheelbase on one side than the other.

My cars have at times had up to 7 degrees of camber and various caster settings using only shims(and or round tube)and longer high tensile bolts replacing the short standard ones.
Over the years many reams of paper have been consumed drawing and calculating the correct numbers for front end roll centres along with actually doing what you have suggested already,then testing only to find the bin being the resting place for modified arms.

Hope this helps.