I honestly think the starter just happened to start die now it barely turns over I have battery power and a spark but the starter is just going slower and slower. Just needs to last a few more days.
Well if you want to buy parts and throw at it that's OK, but that is why they make diagnostic gear and that's why we suggest you actually test stuff. So let's say you buy a starter.
And next a battery
Next an alternator
Maybe a couple of battery cables
and last, you find out it's because the regulator was bad.