I can help a little.
Four seasons is in the Campbell/ Struthers area. They say you have 30 days to transfer everything. You really have 30 days from the first time you get caught. You will have to take the written test. The Canfield post of the Highway Patrol does the testing. I would assume that there is also a location closer to Campbell. To transfer your car, you have to go to a dealership first. They make a tracing of your VIN code and give you a form to take to the title bureau. It was $3 dollars when I did that. You then go get an Ohio title. Take the title to a license bureau to get plates. I only know of Westside Merchants and Southside Merchants. There might be more. Costs vary by township. My plates are in the $50 range. I don't remember what a drivers license costs.
Ohio does not honor a Pa. carry permit. Ohio requires a 6 month residency, and 16 hours training by a certified instructor. Instructors are charging in the $100-$150 range for a course. Lowellville Rod & Gun club most likely offers classes. That would be close to you. After you get your training certificate, you go to the Mahoning County Sheriff's office in downtown Youngstown with $55 dollars exact cash, a passport photo, plus the already filled out application, and your certificate. They will fingerprint you. It then takes 45 days to receive your permit.
If you get pulled over as a concealed carry holder, you must inform the officer that you have a permit. It doesn't matter if you are carrying or not. It's a stupid law, because he already knows when he runs your license.
http://www.packing.org will get you to the different State laws. Ohioans for concealed carry is another.
There is no gun registration in Ohio. When you bring them over, carry them unloaded in the trunk of your car. Most people don't know it, but Ohio is still an open carry State. You can legally carry your weapon in the open, strapped to your hip, without a license. You can do it, but you will get harassed.
The Social Security office is also in downtown Youngstown. Take some quarters for parking.
Gas just went to $3.45 last night. I find that it is usually 10 cents cheaper than Pa.
I really need to go to bed, so I hope Cortlandgirl and the others will post the actual links for you. There are several with the information that you are looking for.