Form 2848

I've read a variety of posts on form 2848 -- filling out for a parent so I can submit taxes.

 

If I paper file, do I simply attach the 2848 (along with supporting POA legal forms) to the 1040 paperwork?  Sign the 1040 as POA, and mailed to the address noted for the 1040.

 

Is it advisable to submit paper to keep all the documentation together?  Or is e-filing with followup 8453/2848 equally acceptable?

 

Thanks!