Eco-Sol or Latex, forget about the thermal, it has considerable limitations compared to the others.
The all-in-one hybrid, I wouldn't, like Sightline said you can be printing tomorrows installs while todays installs are on the cutter.
Graphtec cutters are great but if you go with a latex printer I would highly recommend a Summa cutter, the OPOS XY feature works amazingly well.
As far as eco or latex you can't really go wrong both are awesome.
HP is king of latex printers, no need to look elsewhere....getting service can be cumbersome, mostly because the person you are calling speaks English as a 3rd language.
I ran Mimaki printers my first eight years in this business and they are great machines, well built, workhorses. We had very adequate service from Advantage
Sign Supply on these machines.
The Epson SC 30670 eco-sol is a great printer for the price point also(15kish), ours just rolled 425k sq. ft on it's second birthday. It has been serviced twice, both times tech was on site the next morning with parts and had me printing well before lunch.
Always laminate outdoor graphics, anyone that says otherwise is lying or will be out of business in the next couple years.
Best of luck.