I would not rely on "bodybuilding" to get you out of a bad situation with a 15 foot retic that has made a mistake.
That would be a false sense of security and irresponsible. I don't ever overestimate my abilities even with the smaller 7 foot boa here. I still pay attention. My retic has me on my toes a lot but is still young. I'm sure you will be aware and cautious too. All it takes is a distracting bite and a coil or two from a big animal and you are in trouble.
I'm glad you have help as that is a requirement for the big ones.
Most folks are leaning toward the dwarf and SD packages these days for manageability and lesser feeding costs.
Still think your tiger is beautiful.
Be safe and good luck.