Sm465 gearing ratios?

[C101971]

So I'm kind of curious cause I have done lots of research but no answer, and could not find anything on here. Is there any company that makes higher gear ratios for the sm465 trans? 2nd and 3rd are spot on where I like them but 1st seems way too low and low gear is well... Low gear. I'm hoping to find someone who ideally in my eyes, makes gears where low is equivalent to 1st, 1st is a bit higher geared, and 2nd and 3rd are pretty much the same.

I know I can change the diff but that doesn't solve the problem that low gear is useless cause my c15 is a street truck. And I'm not too big of a fan of the big jump from 1st to 2nd. I know I could also put a Vette trans instead of the sm465 but being a taller guy, the shifter is in a really nice spot.

Can anyone shed some insight on my options here? If it's going to cost me as much as a new trans then I'd rather just get a new trans, but if it's a few hundreds then I don't mind. Just trying to come up with a solution