You don't have to use the perching pole so it wwouldn't be a problem.
The biggest problem is the ramp - it will NEED sides added to it as a pig getting shoved out of the way by another can fall off, and it's a very big drop! The number of pigs I have had in over the years with healed fractures from falling off ramps is surprisingly high, even had one come in that had fallen in the days before being handed in (probably why he had been, to avoid vet fees) that had a broken pelvis.
Making ramps as safe as possible by reducing how steep they are, a non slip surface so they don't slide and adding sides saves a lot of pigs a lot of pain, and saves you a lot of vet fees.
HTH
Suzy x
