Keep track of the number of shims at each point at the top a-arms and put the same ones back when you assemble it all.
This might keep the alignment somewhere as it should be / was?
When it's all back on the wheels you can use a spirit level to set the camber to zero, and a tape measure to set the toe-in to a couple of mm.
To adjust camber use equal shims as required to front and rear bolts.
Take it for a test drive and if it pulls to one side it will be the side with less positive caster.
Increase the caster on that side, but adjust both bolts to keep camber the same.
for eg. if you add a shim to the rear bolt you will have to delete a shim from the front bolt to keep camber at what it was.
That should take care of a Sat. afternoon