I have some experience with laser cut chassis.
The first one was the mid-engine v8 project from 30x1.5mm that I designed in 2013
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Lancia chassis.jpg
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Lancia laser cut joint.jpg
And I can tell you that laser cut tubes are going to shorten build time a LOT. It was one-off build and still, I think that with round tubing no way you can build chassis faster with tube notcher. One thing to consider that if you are going for laser cutting probably you already have CAD model.
That makes you slower at the design stage and much faster at the assembly stage. Personally, I just hate to cut off metal and redesign things on the go.
The second was Shortcut chassis in 2015.
And when you using a laser, not like notcher but actually design things with laser cutting in mind that were things become real kicker!
Tab and slots, self-jigging, bend-by-hands, closed angles and other design techniques become real time-savers.
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shorcut tube pack.jpg
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notches.jpg
Sometimes you can avoid using jigs, tooling or design limitations. For example lobster back style 4-2-1 equal length exhaust collector made from one part(all 4 runners).
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Exhaust 1.jpg
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exhaust 2.jpg
I do not have experience with laser cutting tubes in the US. In Russia cutting DOM tubes were around x3 to a price of the metal. I still have all DXF files for Shortcut chassis and if someone has contacts of a trusted laser cut shop we can get a quote for 10-20 chassis.
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Chassis.JPG