Welcome to the forum. You can just upload photos from you computer. Stay away from rip off bucket.
The Teflon seals are about the trickiest part.I see thats a small block chevy. Which transmission are you planning to rebuild? The th350s/th400s are really easy. The 700r4 is just a bit tougher but still easy. Theres tons of youtube videos showing how to rebuild them.
I've rebuilt many. I've actually got my 4l80e down to a bare case right now and another one to swap guts to make it 2wd.