Would I be able to upgrade my Touch pro 2?

[rdcrds]

I can't get 1 I have a 7 line plan from years and years ago.I am a 11 year sprint customer but i can't add it to my account cause of the SE requirement.It always gets me cause i have free unlimited internet on my account.They told me the best i could do would be to add a new account so i would have 2 accounts.But then i would have a extra line i do not need.By dropping 1 of the lines on my 7 line plan it saves me nothing cause my added phones on that plan cost nothing.After all the discounts and such i only pay 140$ per month for the 7 lines.

I would love 1 but i am stuck with the tp2 cause there is noway to do this unless i want to pay after discounts 50$ a month and then have 1 phones.