I have an operations manual I could e-mail to you. I imagine you are going to be passenger and possibly internationally?
The OpSpecs are FAA provided, you just need to find what you want to do. I can help you with that too. I would strongly suggest to go I-OPPS training with the FAA.
opspecs.com is a great website to start working on your MEL and set up your I-OPPS training.
Flight Standards Information System (FSIMS) is a very good guidance on the FAA wants from you. Proving runs, conformity checks and many other subjects are in there. It is not going to be a fast thing, it took my company almost 14 months to have it completely going, we had to add TurboProp and TurboJet so we had to do many things all over again for the different airplane. We also ended up moving from one FSDO to another. We even had a certificate, but they made us pretty much start from the ground up. I did learn a lot that way and am happy I got to do it.
For the training Manual, you can use FSI or CAE Simuflite and change it as you go. You will probably have to go through them, or similair company, for initial training anyhow. They will not assign a full checkairman immediately, you might be able to get Line Check airman status during proving runs if the have the right (Chief) pilot for that. That's what they did with me. Be helpfull and polite, and make sure that they understand they are welcome there whenever. Shows them you have nothing to hide.
First couple of months there is going to be a lot of writing, research, training and many more things. You probably be wondering why you even considered doing this, but when it all gets going and you do good it will be a great feeling. Believe me
