Its piss easy to do the torsion bar, sdon'rt listen to these non believers
Did it on my 1.,2 for the first time and it took me about 30 mins, fronts took me an hour.
If you get it wrong, its a simple case of pulling it out and adjusting it more in the right direction.
if you are local to the midlands i'll lower the whole car for £50 for you, or the torsion bar for £20 if you want.
Did a torsion bar alone the other day, took me 20 mins.
You will find alot of garages won't touch torsion bars as ttehy dont' know what they are doing wiht them.
There is a giude floating around somewhere if you do a search, otherswise i ahve a haynes max power modding giude that details it, for sale for a tenner + P&P
Also you dont' need the special tool, easier to do it using an M10 threaded bar, M10 nut and washer and 30mm 1/2" drive socket......not to mention cheaper