c70 cab lower arms?? 2001

Hi peeps, may have to replace the lower arms on the wifes 2001 mk1 c70, They are the Bolt through the subframe type which are a little different to the 850's ive had.
Whats the best way as from what i can see there is not clearence to get the bolts out without having to lift engine n box out of the way?

Thanks in advance

Just to update, wishbones actually un thread from the bolts sercuring them, so no need to mess with the box or engine , may help someone ;)