You dont need ukara to buy kit, you don't need it to take part, you'd be much better off learning what you need & like through experience rather than sitting writing lists is kind of what I mean.
I'm still new to all this & the one thing I wiash i did was not rush into spending cash, I've already got stuff I don't need because I got over we excited & bought stuff I thought I needed.
Best advice I can give was my original post, get out in some cheap kit, take part & build your load out with what you need, rather than what you want.
For instance go & rent an M4, second time an Ak, third time a G36 or even ask if you can try different RIF's.....during the day. Don't worry too much about kit. That's secondary to the fun of just doing it.