Bentley can attest lithium is the only way to fly.
I am an “Eco battery” dealer and our pricing is determined by them and they are VERY strict about it. Google them and you will see based on your needs the cost. You might also look @ “buggies gone wild”, there is a wealth of information on lithium as well as incredible knowledge “auggie dog” pat911, simicrintz amongst others. They not unlike everything else have really gone up. I dont think Bentleys set up can be bought for that $ currently. Trust me on this, you do NOT want to buy a cheap set up! They are expensive but worth every penny. Roy-pow is also very highly regarded although I have no experience with them. My shop can be found by googling “golf cart repair, St. Mary, Ks”. Bentley if I shouldn’t have said the last sentence please remove.