Spada suspension rebuild

[gatch]

it has come to my attention that years of abuse and little to no maintainance has resulted in my spada handling like a water bed.. symptoms include

*front end bottoming under hard brakes
*rear end bottoming during hard cornering
*if it doesnt bottom out in a corner sometimes the bars will wobble like a
mini tank slapper

now i have been riding the spadacus for about 5 years now and iv gotten to know it pretty well, and the downturn in performance has been very noticable, im no expert on the subject but i reckon its time for a full on front and rear rebuild, springs, seals, oil, bearings.

i would like to know if it would be worth using heavier springs, oil etc, i like to ride reasonably aggressivly so would be looking for an improvement over stock set up.

any help here would be awesome...
cheers, gatch

[gatch]

p.s im a fitter turner so i could probably do the work myself, just would like moot out some details before i fling my hard earned dollars and cents away..