Bitcoin exchange now provides service to attach your verified bank accounts which made easy to transfer your funds from exchange to accounts and vice-versa.

There are services such as "coinbase"

I can vouch for Hardware and MyEtherWallet it is easy to use and create wallet plus it is highly secured for me, try to check some reviews. My friend who was a long time bitcoin enthusiast uses it also.

I would say don't buy the used one. Before buying it read the review