I bet they would. A lot of outfits around here that run camps also have private lessons with their instructors. Even if not under the name of the company, I think plenty of coaches would like the extra income!
Many of the group clinics I've been to were very mixed level - but there might only be 4 of us, and we'd rotate through each drill, and the coach would just modify it as needed for our ability level. Goalie A might use the drill as an opportunity to work more on basic crease awareness, while goalie B might be working on advanced movements. If the coaches have decided to cap a group at, say, 5 goalies, a beginner isn't taking away an advanced player's time, because each goalie's time is built into the camp, n'est-ca pas? And if there are fewer than the cap (only 3 of us poor padded bastards sign up), woohoo, extra ice and attention for everyone!
Depending on how popular hockey is in your area, I think it'd be worth it to take a chance on asking if any of the lower-level or children's camps might be willing to accept an adult, if there was space (obviously, you are willing to pay). (some powerskating camps and clinics will take older skaters into a younger age group if that's where they're at). If they say 'no', they can probably direct you toward another avenue - "oh, we also do private/semi-private lessons" or "oh, coach [x] runs a beginner clinic across town". It's worth a shot.
Honestly, $99 is about what a single, hour-long private lesson would go for where I live (outside Boston), so you might as well find a semi-private or private lesson at that price. Dunno what the going rate is for an hour of goalie torment where you're at.