I’m setting up a small custom motorcycle shop (mostly Harley stuff) and want to start doing cylinder boring and engine work as a paid service, not just hobby use.  
Right now I’m stuck between these two machines:

Precision Matthews PM-1340GT  
https://www.precisionmatthews.com/collections/lathes/products/pm-1340gt

Grizzly G0824 (14x40 class lathe)  
https://www.grizzly.com/products/grizzly-14-x-40-2-1-2-hp-gunsmithing-metal-lathe-w-dro/g0824

From what I understand:  
The PM 1340GT is more of a higher-end Taiwan-built precision machine with tighter tolerances and better fit/finish  
The Grizzly is cheaper and bigger (14x40), but probably more of a “good enough with setup” type machine

What I’m trying to do with it:  
Bore Harley cylinders (Sportster / Evo mainly)  
Do general engine work and fabrication parts  
Offer services to customers and actually make money with it  
Eventually build this into a legit machine shop setup

My concerns:  
Is the extra precision on the PM actually worth it for engine work?  
Does the larger size of the Grizzly make it a better choice for cylinder jobs?  
Which one would hold up better doing paying work regularly?

I know a real shop would use a dedicated boring machine + hone, but I’m trying to figure out the best starting point that can still produce quality paid work

For those of you who’ve run either:  
Which would you pick and why?  
Would you trust either of these for customer cylinder work?  
Are there any alternative models you recommend better suited to my needs?  
What would you do differently if starting over?

Appreciate any real-world input from people with hands on experience with these machines or real world experience doing similar work as I described im going to be doing.

PM 1340 GT vs Grizzly G0824