Introduction
Having a Jump Freighter is a huge quality of life improvement for anyone living in nullsec, and with the current tether mechanics and proper discipline there's no reason you should ever lose one.
With a minimal amount of skill training, you can also build your own for about half the cost; most of the work is moving things around and identifying the critical path so as to run everything in parallel, and this guide aims to help with that.
Scope
The following things are out of scope, either because I don't know much about it or I don't think it's worth your time.
- Fuel Blocks: I assume you already have a setup for building these.
- Acquiring Minerals: just buy it off the market and import them (opens in a new tab).
- Planetary Interaction: too much work to setup just for one ship.
- Building outside of a GEZ: I don't know what structures you have.
Caveat
It's really annoying to provide exact numbers, due to some structures having T1 vs T2 rigs. I'll overestimate, and maybe (probably not) come back later with better numbers.