So here's a dumb electrical question

I did have to use the poor man battery cable lol. I finished my positive side with the 1/0 and had enough left over to put in a decent ground system. Only used one ground wore from the cab to my grounding lug on he frame. But I got it running and everything seems to work great no issues. My cables in the back are 1/0 and then a decent sized factory cable attached to frame. Ground from engine to frame is 1/0 and alt positive side is 4 ga. So I think I'll be alright and save a little till I have don't have such a long laundry list to do