You have a lot of different interests as far as your weekly activities are
These activities you have mentioned come with varying degrees of
intensity and difficulty... Some to a great extent more than the others,
which require a certain degree of coordination and base conditioning level.
Knowing which are appropriate to perform, how to combine them, and how
much of each to incorporate into your weekly workload depends on your
current fitness level and experience as well as your goals and objectives.
For instance you mentioned a goal of decreasing your BF% down to 8%,
which can involve HIT but only to the extent that your cardiovascular
fitness is high enough to get something out of it.
Otherwise, steady state training would be better for right now. Also
whether or not you have any serious strength or muscle improvement
objectives, the circuit training may or may not be appropriate.
But in any case, the fact that you have such a variety of different
interests in physical activity will require more detailed knowledge of what
you're capable of on my part just to be able to combine some of them the
right way and ensure that you do not overtrain or even waste time with
something that is not effective for you according to your goals.