I'm considering this plane as my next electric project. I'm wondering if anyone has converted this plane to e-power?

Here are my thoughts for power:

Eflite Power 110
CC 85a high voltage ESC
8 or 9s 2p A123 packs (made from DeWalt packs)

My immediate questions are:

Can the hatch be set up to accommodate the batteries (easy access)?

In this size plane would I run a UBEC for servo power or will adding a servo battery/switch be a better choice?

Thanks for any input.
Bob