Comment that someone else made much much later but would be great to have up front. Some kind of lazy susan to build on would be great, since you end up spinning the printer around alot to get to the front and then the back and the sides. That can be a piece of cardboard, or something fancy if you have it.
if you have a Core one + , the build is here https://help.prusa3d.com/guide/1-introduction_981923#982324 but the core one guide has more comments to help assembly
1. A small flathead screwdriver to push the M3nS in. 2. A metal spudgel to help push wires out of the way. 3. Flush cutters to cut the zip ties easily. 4. Masking tape and a Sharpie to label parts.
You will be moving around to different sides of the build frequently. One "technique" that I found helpful: use one of the flat cardboard inserts from the Metal 1/3 box as a makeshift lazy susan so that you can spin the build rather than spinning yourself.
https://makerworld.com/en/models/2085089-prusa-core-one-screw-organizer?from=search
That can be a piece of cardboard, or something fancy if you have it.
1. A small flathead screwdriver to push the M3nS in.
2. A metal spudgel to help push wires out of the way.
3. Flush cutters to cut the zip ties easily.
4. Masking tape and a Sharpie to label parts.