Androfill is the only European injector of Ellanse in the penis that has a history of patient review on this site. I'm sure there are other Clinics that perform them too, but I can't vouch for any of them in Europe. I am in search for a 2nd European Sponsor to help bring more competitive options to my readership, but Androfill has Sponsored this site for a few years now and are very much a viable option -
The only issue that may present itself is whether or not they are willing to inject HA or Ellanse on top of a penis with PMMA already in it. They may or may not be comfortable with it, I know this sentiment differs clinic to clinic.
to your point though: If you really want HA Ellanse, and have PMMA. I would find a doctor that does both and pay for a brief consult to get a no bullshit non biased opinion of all pros and cons. Im sure there are a few of these doctors out there. one that comes to mind for me is Dr Carney at Morganstern Rejuvall in Atlanta GA, US.
I do not know much about the new doctor at Avanti. But the old doctor, Cassavantes ( pardon spelling ) did both. @Skeptical_One
might be able to add some more names to this list for you.
Also consider what kind of doctor you think you might prefer.