yes, all possible. There are a few of us on here that have the Meyle heavy duty bushes fitted thanks to Iggy21's research and Mark dtms press and drifts. I have a set in my wishbones.
Beware the Bmw bushes, i forget the model numbers but some of these give a differant bolt and hence wishbone position as the centre spacer is not central to the bush by 1.5 mill. Not much but enough to upset geometry. I also have a pair of these in my tool box unused.
But more than that consider the logistics of this operation. The danger is you damage or split a bush or wishbone in the re fitting/pressing process. Then your buggered. Car on jacks wheels and wishbones off and no way of fixing the car for work monday morning as the dealers and most factors shut at lunch time on saturday even if they have the parts in stock which they often do not. And if you've got as far as pressing bushes in the first time you do the job, its a good chance it will be well gone lunch time on sat by then.
In my humble opinion, far better to...
1. Acquire another set of wishbones second hand with good steering knuckles on them and pre press bushes into those first, once pressed successfully, fit those as a straight swap as the guide on here.
Or 2. Fit new wishbones, Lemforder or what ever as the guide. Then keep your old wishbones, get them pressed with the bushes of your choice ready for next time they fail.
Or there is a third option.
3. buy any cheap wishbones new, 30 to 50 quid a pair, and press new better bushes into those. Then fit as the guide. This is probably the only use for wishbones from the likes of buypartsbuy or firstline as the bushes in those are shite and will not last 3 months in my, and others, experience.
Its most definately possible to press new bushes. But you need a press of 10ton range (i'm told) suitable drifts that fit the bush to prevent damage to the new items and finding bushes as well all adds to the job. Not straight forward for most people, and not really suitable for a beginner(if you'll pardon the term) who is fitting wishbones for the first time on his drive without a lift or room to swing a torque wrench under the car when its on the ground with wheels loaded.