Sean I don't know if you've found or replaced them yet.
But I noticed yer in FL and when I realized that I remembered this company here http://www.josamusa.com/
They are in Orlando and Setra?MCI send all their alignment work to them.
We have used them several times and are EXTREMELY satisfied with their service and rates.
One one of our buses they checked it out and found it needed items that couldn't be located in the short time we were going to have it in Orlando for. They let us know what parts we needed and we called Setra an had the parts sent here.
But they didn't stop there. They called around to see who up near us could/would do quality alignment work for us after we got the parts.
They eneded up calling Willie Nelson's mechanic who not only recommended PREVOST in Nashville but went as far as to call them and verify they could/would do it for us and had them take down our information and call us.
I highly recommend this company for anyone with a bus that is in FL or going to be in FL and needs alignment service. http://www.josamusa.com/