In terms of address, this won’t cause any major problems, you can make arrangements with your trustee to simply use a reliable location that you are sure to collect mail from.

As for account numbers and balances, you can try calling the institutions directly and requesting this information from them. All you need is the information, not having the statements won’t pause a major difficulty.

As for cost, this fluctuates significantly with income, expenses, number of dependents etc. so you will need to contact a local trustee.