starter motor for slant six

I'm not sure. I have a 6 to 1 header but had the starter on before I put the header on. I hope I don't have an issue with space. Not sure what would be easier, remove header/intake or the transmission.
Transmission- lift the car, remove drive shaft and all the trans stuff, support the trans and so on. All while you are on your back.
Header/intake- bent over the fender, remove pipe fight all the nuts under the carb, pull starter out.
I would think removing the header would be easier way to do it. But just my thinking. Anyone else think different???