Rebuild transmission troubles

Posts 5,16 and 18 kinda tell the story. You havent told us how you engaged the pump and input splines yet, so Im gonna assume you didnt know about it. So, Ill tell you how I do it.I take and old wheelrim and lay it flat next to the workbench.Next I pick the tranny up and drop it into the centerhole.If the output-shaft(O/S) hits the floor, start over but block the rim up higher til the O/S clears the floor.I lean the tranny up against the bench, and put it in park. Now comes the tricky part. Hoist up that drained convertor, flip it over and gently drop it into position. You will have to plan ahead as to where to put your hands so as not to cut them on the ring gear. Youre almost done. Now you have to rotate the convertor until it drops down below the level of the bellhouse. Sometimes you have to rotate it back and forth and/or several revolutions. Sometimes it drops down all at once and sometimes in two steps. When its right the cover will be below the bell. What you are doing is engaging the front pump and the input splines. You can do this with the tranny sitting on the pan, its just a little trickier.Now after the trans is married to the engine you will have to pull the convertor towards the engine until it meets the flexplate. Ive done it both ways. Its usually easier sitting flat. But when its on its tail it makes nice clunking noises.
If you cant answer yes to posters 3,9,15,17 and 18, then likely you are going to be replacing at least the pump gears.
In response to post 19; "all the way in", or" bottomed out" are incomplete answers.