Yea too many beers too late at night.
Sorry for the chicken^^^ statement. Common sense and prudent caution are not chicken&^&^ Welding on rims of any kind is a dodgy idea at best....I have done it for myself on certain things but I would be hard pressed to do so for others.
And you know in some states that little liability contract probably would offer little to no protection.
So to the original poster:
Bert, this is not a good idea and you should avoid it. Someone getting hurt down the road is not worth the risk of a couple hundred bucks.