Default Nook HD 2.1 to root not root

I have Nook HD 16GB with firmware 2.1. Boot from SD, install Universal Boot. It is working fine.

Nook HD firmware 2.1 comes with Google Play.

I need some advice whether is worth to wipe and restore SM10.2 and GApps. Also can I replace Nook HD with firmware 2.1 with SM10.2 ROM.

.