Am I Insane For Wanting To Diy Most Of A Concrete Block Garage?

I bought a house last fall and the only thing that it doesnt have is a garage. I live in Detroit, the alley behind the house is used often. I park right inside the fence in the backyard as-is.

Plan: * get building permit. I am thinking of buying an existing design so that its already signed off on by an engineer.

• get a survey so I am not accidentally building on the neighbor's property

• dig up old apron and remove fencing, while I have the backhoe rented ill also dig out the area for the slab

• auger a hole for the drain (sewer runs under alley). Fix offset sewer while it is dug out with the auger

• dig a trench from house to garage area and run 220 and water

• get my buddy (former combat engineer) to help me make the forms and lay rebar

• hire the neighbors who run a concrete company to pour and level the foundation, accommodating drain

• buy a pallet of CCU at a time and build walls. Buy a lot of beer. Get super swole.

• hire a roofing company to build the roof. I dont know anything about roofs. I want a flat roof with a porch on top. I also want to be able to run a 1 ton crane from the roof (incorporate an I-beam of some sort?)

• pull plumbing and electrical permits. Install one sink, a undercar washer for pulling in, and a spigot inside and outside. Install electrical panel, run a 220V outlet, surround garage with GFCI/non GFCI outlets. Maybe throw a heat pump/AC in at some point for climate control.

As much as I like working on the motorcycle overwinter in my dining room, women look at it weird when they come over and it takes 2 friends to get the bike up and down the front porch stairs. Putting a building in the back yard will block sun to the back yard, so the roof porch also doubles as a space to put planters and have a garden.

I was professionally a mechanic for a few years and grew up as child labor for my mom who loved to buy old houses and then make me help her fix it. I can hang drywall, and build prefab sheds and stuff, and now work as a technical problem solver (systems administrator).

For the questions:

• does building with CCUs on a preapproved plan require a non-learnable amount of knowledge if I am making sure the walls are straight up and down? Do I need to go to a masonry monastery to learn how to do this? This is my biggest concern.

• should I expect an increase in my home insurance premium as I expect the value of the house to go up?

• should I look at having the garage just adjoin the house directly?

• is this delusional? It doesnt feel delusional, but thats what a delusional person would say

I work with a lot of facilities folks (electricians, plumbers, etc) who I can consult with over time. Hopefully someone with experience doing this can chime in!