Convert auto to manual

So I bought a truck and was very wary of the auto trans, but the dealer talked it up. I can't stand it and I'm willing to put the money into changing it. Most Pete shops won't even talk to me on the subject, couple said $20,000 in labor. Relinquishing the truck not an option, so I am looking for some comprehensive advice on how to go about changing it out myself. I don't have a clutch so I must install that as well, I know the drive shaft must be shortened and a cross member put in. Anyone able to give me the low down, mostly step by step on how to go about this?

 

Lol I would... But I've already put $20,000 into making this thing stay on the road. Definitely a lemon, but I'm getting the bugs worked out. Can't see handing the place all the new stuff and walking away with another used truck that'll likely be in the same condition mechanically that this one was.

 

It's an eaton but an ultrashift plus with no clutch.

 

I fully intend to buy a new trans, I want a 13 not a 10. However the problem is the Pete dealers saying that nothing is the same and everything has to be changed. Some dealers (like the one in pocono) say that it can't be done. It simply seems to me that people are making a mountain out of a mole hill just because of their lack of experience or understanding. As the saying goes, if you can't dazzle em with brilliance then baffle em with ...
I'm calling eaton in the morning to see what they have to say on the subject. Somewhere something has to give. These auto shifts are not only junk but they're very unsafe. You can't downshift in emergency situations, in traffic jams it rolls OOG until it decides to slam into much too low of a gear causing serious unexpected slowing, going down a grade it goes OOG if you go down past 6th gear.