You'll need
Home PCB's generally don't have a silk screen, limited to double sided and no plated thru holes.
HASL (Hot air solder leveling) or plating USUALLY isn't done.
1. Program for generating artwork
Some are free and some with limitations for the free version. Examples: DesignSpark, Eagle, KiCAD
2. Printing of the artwork. The Toner transfer method can only be done with a laser printer. For printing (UV exposure), I like using a polyester translucent paper.
I never tried toner transfer. A clothes iron or modified laminator is typically used in this process ($100). Magazine paper or toner transfer paper is used.
For UV exposure there would be talk about an "exposure frame". I use a drop of water. The UV light source is the other issue. I did a board using sunlight once and a few using a UV source used for photolithography that I had access too. You need to figure out exposure times. The general issues here are is it dark enough.
For the UV exposure you may need a "bug light" and a makeshift darkroom and pre-sensitized PCB's.
I actually made this material, but I had access to an oven and a spin coater.
Etching is very messy and you have to worry about disposal. There are there major chemical systems. Ammonium Persulfate, ferric chloride and hydrogen peroxide/muratic acid.
Etching works better when heated and agitated. Bubbles are sometimes used. Ferric chloride is messy and stains. The hydrogen peroxide/muratic acid is renewable. So goggles, gloves and apron are necessary. Baking soda can be used for neutralization. You need a plastic container to store spent stuff. This is the really messy part.
Another method is isolation milling. You'll need a CNC mill for that.
Drilling. A drill press is almost mandatory. Proxxon is way better than Dremel. PCB drills are carbide and fragile, but you don't have to use them. The runnout on the Dremel is too high. Manual drilling has issues too and solutions.
A camera and laser pointer are two additions.
I've done HASL, but not with air.
Without a silk screen, it's difficult to place components manually. You can do the silk screen process too. It's a UV exposure sort of thing to make the screen and you squeegee the paint through the screen.