Hello, Deamarhut, and welcome to the family, we are glad you joined and looking forward to hearing more about your grey.
I assume the grey came to you as the previous owner could not keep him anymore. Were they the original owners and had him ever since he was a baby?
I am surprised he was never taught to step up and he is 17 years old, how did they manage that. You will need to teach him to step up and he can learn to do that.
We have a lot of threads here that deal with all aspects of the care, feeding and training greys. You need to skim thru them for the ones you need, and read them, you will find a lot of good information you need to know.
If you have specific questions, please don't hesitate to ask, we will be more than happy to answer the best we can.
If you have a photo of him you want to post, please do so, we love to look at each other's greys.