Sportchassis, yes or no?

Wanted to do non cdl but I see that it won't be easy. Even had a perfect build in mind but I guess having the cdl will save me money in potential fines. So 26k out and I have a few questions about some larger haulers, cause if I get a cdl A then why not?
I see some very nice Freightliner sportchassis out there for not much more than a dually. Very low miles as they were mostly used for someone's RV. They are decked out and luxurious on the inside and can definitely do a better job hauling than a dually. Rear bench opens to a large bed and storage all over.

Does anyone have any input on these trucks? GCWR? Curb weight? Towing capacity? Reliabilty? Prefered engines to look for? How much more will these trucks cost to run compared to a dually ram setup? Used sport chassis vs new 2019 ram dually.
Any other single axle trucks I should look at that might be a better choice?

One more question I don't want to start a new thread for.
I have a connection to a guy that can keep a 5 car hauler full and says he got papers to back up his claim, I'm going to see him next week. He knows I am just getting into this line of work and says I'll take 20-25k gross a month at the least on my own rig and authority. Is this BS? Is 20k gross monthly min enough to keep the truck maintained and take home a good profit? Should I stick to regular freight with a flatbed?

 

The 5500 ram has a gcwr of 38,500 lbs and a gvwr of 19,500. Is 19k lbs enough for trailer and 5 cars ?
The 3500 dually has better numbers, gcwr of 39,100 and a gvwr of 14,000. Leaves you with 25k to play with.I can't find any specifications for the sportchassis. Was hoping it could haul 30-35k comfortably and maybe safer? I wouldn't know because apart from what I am reading online I think I only ever saw one of these in the wild.
The width of SC is also appealing to me compared to the pickups. I won't be home everyday and am going to want to sleep in the truck, and I rather not pay for a hotel every night. Was hoping the cost to keep it working would be less than a single or tandem semi. Was hoping someone might be able to confirm the lifespan these. Haven't found any over 200k miles.

That's a cool looking franken-truck! I'd drive it all day.

 

I'd love a big rig but they come with a bigger price tag.
I can outright buy a new $70k ram and new 4 car trailer and have a comfortable cushion left for running.
Better to run with no loans on your head, no?