Ten hours might have been a little optimistic. I only have abut 4-1/2 left.
Measured and marked off the bottom. It needed ground and welded all the way across. After tacking, small sections were welded and cooled with a blow gun. The heat was controlled with the compressed air and jumping around. Slow and tedious. The dirt and rust in the seam slow things down even more. The welding on the bottom is about 75% done. Got dark and had to go in for dinner.