With Riding that motor on the street possibly to get you to work. Reliability should be your biggest concern. Welding the crank shouldn’t even be a question when it comes to reliability. Sending the motor to a builder and having it tuned properly after will give you more assurance of reliability then taking motor to a local shop and asking questions here. I understand building it yourself to enjoy the project(that’s what I’m doing, not a street build) But if you need to depend on the machine to get you to work....