You can just get the Readylift kit that comes with the upper control arms. That's all you need, plus install and an alignment.
The full kit seems to be highly recommended because of you just use the spacers on RAMs, the ride will be harsh.
The kit fits both 2WD and 4WD applications for 2019 new style RAMs:
https://www.readylift.com/2-front-leveling-kit-with-tubular-control-arms-2019-ram-1500-4wd-1.html
That's a similar quote I got. Includes the kit w/ UCA, installation, alignment and taxes for a little over $1100.
Itemized like this, without tax. Labor seems a little high, but this shop does do good work ....
- $530 (Readylift UCA 2" kit)
- $450 (Labor)
- $60 Alignment