QUESTION: BB 7510 on Boost Mobile

Hey guys, I searched the forum first and could not find the answer to my question. Hopefully, one of you can help.

MY QUESTION: If I was to buy a BB 7510 on eBay, would I be able to use it on their Unlimited Minutes & Texts package? And if so, how would I go about doing that? Please explain in detail.

I only want the BB because of it's QWERTY keyboard. I care nothing about the features it comes with standard. I would only use this phone to call & text people. Once I had the phone functioning the way I wanted it to, I would delve deeper into using the BB to it's full capacity.

Thanks guys!