He will be wearing clothes that fit him when he is released. 

There are specific medical procedures available to your inmate that he can follow to get it taken care of. There are forms that he should get from his counselor or case manager to get the process started and submitted into the system. This is a very slow process so patience will be required. You, as an outsider can do very little but call the facility and try to find a sympathetic ear to inch along the approval process.

Neither are good things to happen to an inmate. The first thing that happens is the corrections officers take you into custody, in handcuffs, the whole thing, and you are taken to the Special Housing Unit, or the SHU, also known as "the Hole", or solitary confinement. You will stay in the SHU until you have a Disciplinary Hearing to determine your fate. The penalty is usually a lengthy stay in the SHU, like 6 months to a year or more, plus

Not sure what you mean by "what process an inmate will do", and there are no prizes for not being in a gang or not being a violent offender. But if they are doing their time free of incident reports and adhering to the "programming" administered by their counselor, they will have it easier than those that buck the system. They will also be the first to get any extra time off their sentence if it comes available as it

Yes

Commissary lists for federal prisons are available on this website. Find the prison page and scroll down to "Commissary Lists" and click. There are items and prices displayed. Only the inmate can purchase items (once per week), you can add money to their inmate account for spending at the commissary.

Normally, a 12-month halfway house designation is reserved for inmates that need a longer period of readjustment, as their sentence was very long. Inmates at a federal prison camp are 'short-timers' and most will be lucky to get six months. If you complete RDAP, you'll have a better chance of getting a longer halfway house stint 

Before you go in, many people seek out a "prison consultant". If you have the money, it's thousands and thousands of dollars for the same advice you can get here, reading actual former inmate's answers... for free. You want to make sure you have support, lots of support, from family and friends. It would help immensely if you can set up an inmate account in advance and put money into it. You will need the money to buy things from the

Intake and assignment can be quick if they were transferred within the same prison system. However, across agencies, the processing could take up to two weeks before visitation and phone privileges are restored.

This depends on the release terms set by the case manager. If your sentence is over two years, there is likely to be some halfway house. The counselors in the halfway house are motivated to send residents for home confinement as soon as they meet some minimum requirements like a safe place to live, a job to go to and the promise to avoid known felons while on probation,