Re: Where to get a blow out kit
Building your own, tailored to you level of trauma care training makes more sense.
Obviously I have no idea what your background is, but here is a suggestion/observation.
I have seen a couple of guys here in the states with blowout kits that it was painfully clear would have no clue how to seal a chest or dart a lung.
If you have not already done so, My suggestion would be to attend some training in trauma care, then you may have a better understanding of your needs.
If you are way beyond that, such as well versed in T triple C, disregard!
Attending some better trauma care classes would be what I considered money well spent!
At that point, you will also likely have made some points of contact to purchase proper gear for a kit that meets your needs and level of training.
Good luck either way!