Sounds like you have a good plan in place! The only thing I would choose to comment on would be "its going to be an adult BP..." My question to you would be how was this snaked being housed before? I tried to do something similar to what you did with a sub-adult and despite perfect conditions the snake refused to eat. Put him back into a comparable enclosure and 7 days later he was right back on food. If for some reason this snake is coming from a much smaller enclosure you might have some feeding issues.. If he is already in a larger enclosure similar in size to what you are working on you should be just fine.
Good luck!