They are a pain to put back in ,,, IMO.. I did the same as you welded a rod like you and painted. Instead of removing the pin and spring... I taped over the spring and the handle. I looked at this way it is a mower .,, yes I want to look nice but mowing along side the road , or your neighbor house., More than likely they will never notice that it isn't paper in a small area or a little paint is on the pin or spring.
Just my 2 cents.
Just my 2 cents.