I don't think full sponsorship is as easily got as it once was.
I think you'll find if you also ask for sponsorship, most will ignore you to.
But some companies offer discout a on kit, as sponsorship. An u17(not even a good one) managed to wangle 40% of Woodstock as "sponsorship"
Issue was he had to buy a bat, pads, gloves and bag minimum. Which still adds up. And won't be cheap.
So my advice for you mate is.
A) second hand market, this is cbf, bats of great magnitude never get used, so a second hand gun can be had for a bargain! Search the classifieds.
B) aldred, red ink, rk! Three customer makers who are ridiculously cheap.
180 will get you a g1 red ink and rk made to your specs! I have a red ink and rk on the way. Highly recommended,
Or aldred do a butterfly bat for 135, ugly as sin, but go like a cannon, and the latter is all that matters for run scoring.
C) come play for my club, I've got 18 bats, so happy to lend him one, haha, 3 of our first team have my bats on loan. Cheeky gits