4 speed ka-booom !
And if not money, a ton of time. Time; cutting,grinding, experimenting,swapping, etc.
But of course, for me, it was all worth it in the end. There's just no substitute for banging gears.
One of the best things, possibly THE best thing, I did to mine, was to move the shifter back and up.Back between the buckets, to a position that lets my arm hang nearly vertical, with my hand on the ball in neutral. And up as high as possible. And then a really short stick. And 1/2 inch nearly straight custom fabbed shift rods.