It's never simple is it?

OK, I was excited about getting everything together, until I tried to move the crank, it was firm to tight with a spanner on the flywheel side nut, I thought about it and realised I might have damaged the crank when installing it, the con rod  got caught on the case as I wound in the puller, it was probably an eighth of a turn of pressure on it before I realised and backed it off immediately and gave it a tap with a rubber mallet to release it, I have no idea how easy it is to put a crank out of true, and pulled it through until it was home, fast forward past the clutch, gears, cases together, which took a decent hit with the same mallet after heating it. gaskets, piston, cylinder, head on and all bolts done up hand tight, I put the flywheel nut on and tried to turn the cranh, it was hard and uneven, like at the same point in the revolution it got hard and then easier.....I asked the question to all and sundry and decided to split the cases and see what's going on. fast forward again and once I had it dismantled, the crank spun freely as it did before I put the cases together, I saw what was happening, it was obvious the leading edge of the web was shaving a bees dick off the rotary pad each time it was turned, there were thin shards scattered about. Fuck! was my first thought, double fuck I'll need a new crank, this one was second hand, I felt it for play and measured the gaps. Vertically when pushed up, the bottom gap was .8mm, down, the top gap was between .5 and .6mm. The side to side con rod play was about .2 - .25mm both sides. Anyone want to chime in??
Anyway, I'm going to pull the crank and have a look. There is always something.