You can fiqure about 3500 Lbs. Depending on various factors it could be slightly lower or higher.
A 1st Gen. Camaro is slightly less than 16' long. An 18' trailer will usually work fine, but a shorter trailer can be used depending on the trailer's construction.
Try a "search" on here - this topic has been discussed many times...
Other V8 things - some of which float
Other V6 things - none of which float
Oh yeah, and 1 "Straight-Six" ...
If a man says something in the garage - and his wife can't hear him - is he still wrong !!!