i used to do that, now i just jack up the whole back end in one go with one jack under the centre of the subframe. then put the axle stands under the sills.

its not hard at all to get it off. just depends on how much of a strip down you intend to do. if you strip the whole thing i'd budget new poly bushes. ford bushes are dear and only come already pressed into the arms. for instance the lower spring cup arms are £125 each from ford.