I also did this conversion and what you have done looks like what I went through. Some one else will come along soon and let you know for sure, but I would be a bit worried about the condition of that spindle. Might not be a biggie but that has been abused. I wouldn't worry about the "off center look" I'd bet that is not a problem. Back in the day we used to pack lots of grease in there, but I think that filling the void might not be needed, just make sure the bearings are greased well. Hope everything works out for you.
