[Q] Help!! Have 16GB Nook Tablet and want to get Android OS without rooting....... topic

Hello everyone I am pretty much as noob as it gets when it comes to rooting, dual boot Roms and such. I have a BNTV250 16GB Nook Tablet and I would like to be able to use an 8GB MicroSD card to put the Android OS on so I can have Google Play store and access to all the free apps I love that just aren't available in stock Nook Tablet app store. I would prefer to not have to root as I am worried I would end up bricking, and I don't have the to spend to buy an N2A or AFN card. Is there someone that could point me to a guide on creating my own N2A card or same idea? Because I already have the MicroSD card and I know there are free programs out there to do it. Help please? Thank you for your patience with me and I apologize if I have missed a thread that explains this.