Paint gun question

OK, so I’m going to make my second attempt at using a spray gun. My first attempt was with Hurculiner. It ended with me throwing out the gun and buying a roller and brush.

Attempt II will be on my motorcycle. I have a lot of small parts and a couple large ones(frame, tins, front end) that are in need of flat black paint.

The product is made by Eastwood. The color is “rat rod flat black” The paint is a single stage.

My questions are:
What gun should I purchase? I’d like to keep the price under $100 if possible. Are the harbor freight guns ok for this?

How would you suggest I go about prepping chrome for paint(I want to do it without blasting if possible)?

My frame is either powder coated or painted but still looks good. Should I strip it or just prep it well?

Any tips or things to avoid?

Here’s the specs on the paint:
[LEFT]MIXING RATIOS[/LEFT]
[LEFT]Thoroughly mix three parts single-stage urethane paint with one part 21856ZP Activator - 3:1 mix ratio. No additional reduction is required. Use caution in mixing materials as Eastwood’s single-stage urethane paint may begin to gel after approximately two hours (at 70 °F). A Fish-Eye Eliminator designed for use in urethane products may be added, but only if fisheyes are found to be present. Follow additive manufacturer’s instructions for specific mixing instructions.[/LEFT]
[LEFT]SPRAY GUN SETUP[/LEFT]
Type of gun: HVLP
Conventional Gravity
Conventional Siphon
Fluid tip: 1.2—1.4 mm
1.2—1.5 mm
1.2—1.6 mm
Spray pressure: 8-10 psi
45-50 psi
40-50 psi
[LEFT]APPLICATION INSTRUCTIONS[/LEFT]
[LEFT]Apply single-stage urethane paints in two to three medium wet coats as necessary to achieve sufficient coverage, allowing ten minute flash between coats. Additional coats may be necessary to achieve total coverage for some metallic colors. A final “fog coat” may be applied with metallic colors to help set an even flake pattern and /or adjust flake orientation. A dry film thickness of approximately 2 mil is recommended. Paint should be dust free within 10-15 minutes and tack-free within one hour (at 70 °F). Recoat anytime after the previous coat has flashed, or before 18 hours. After 18 hours, paint should be abraded prior to recoating for proper adhesion purposes.[/LEFT]
[LEFT]This urethane paint may be applied as a stand-along single-stage system, or in combination with Eastwood’s High Solids Urethane Clear as a basecoat/clearcoat system. Additionally, Urethane Clear may be integrated into Urethane color. When combining the two systems, be sure to activate each side (the paint and the clear) separately, with their own activators at the correct mix ratios, before blending.[/LEFT]
[LEFT]When used as a Single-Stage Urethane Paint, this coating may be wet-sanded and polished for increased depth and gloss like any other urethane topcoat. Care should be taken when lightly cutting metallic colors to prevent disturbing aluminum flake. Please read product label for safety precautions.[/LEFT]

I used the Harbor Freight guns. They work ok.
There has actually been some really god feedback on those guns compared to others.
Make sure you let each coat dry enough before recoating… or it will run. Thin coats