Take the cable route too. And the angles you actually need at the joint. A dot inside the reach envelope isn't a weld.

The UR8 Long welding photo has me looking at our fixture drawings again. Extra reach sounds useful, but getting a torch around the back is not the same as touching that point with an empty wrist. I'd like to see a demo with a bulky torch package. Anyone taking fixture drawings to a distributor rather than just asking for a reach number?
https://www.universal-robots.com/news-and-media/news-center/universal-robots-unveils-ur8-long/