Stop in for a cup of coffee

Well....It looks like the transmission is done in this 06 2500 Chev. Hose fixed the trans leak, temporary, and added fluid. No reverse. Its facing in , in my shop. Tried to put it in neutral, and push it back out, but seems to be stuck in some gear, won't budge, Or maybe its too heavy for me?? Guess Ill wait for help. I can feel it has some forward motion, so my plan was to get it out , backwards and drive it forward, for him to tow outa here. I aint doin the trans in this, Dont need the hassle, or the money...I gots brake jobs to do...LOL