Here's what you're not realizing....I'll break it down for you based on my own personal experience:
Kiss LTE rebreather - $4,250.00
Petrel computer - $1,250.00
Oxygen/bailout cylinders/regulators - $750.00
O2 sensors -$300.00
Advanced Nitrox/Deco Procedures certification - $700.00
Kiss rebreather training (air diluent) - $1,500.00
Shearwater NERD - $2,250.00
Kiss rebreather training (normoxic trimix) - $1,500.00
Additional cylinders/regulators - $750.00
Travel for training - $1,500.00
Sorb & other required stuff - $500.00+
That's just training & equipment....$16,000+
Wait...then there's my second unit (DiveRite O2ptima) - $5,000.00
Crossover training $750.00
Oh, and the other 2 units that are on the way - $2,000.00.
We're well over $20,000.00 here.
And that's with a "cheap" Kiss unit.
Rebreather diving is not something to get into on the cheap.
Have you done any research on the unit you're looking at? $800 for a used SCR with no local parts availability. Just to get the unit in the water, plan on another $300-$500. Then training. At the end of all that, you've got a used SCR that, if it breaks, you're SOL until you find parts or get them from Italy.
Become a competent diver first. Don't worry about a rebreather until you're doing diving that is beyond the capabilities of the gear you're using.
Seriously. It's not even close to basic scuba.
On a totally unrelated note...you know why the new Italian Navy has glass bottom boats, right?
So they can see the old Italian Navy!!
Just because something is made for someone's military doesn't means it's worth diving recreationally. Military diving is goal oriented, not enjoyment oriented.