The hassle of getting a guitar set up are:
1. take it to the guitar tech.
2. Ask him to do a full set up. ( action, intonation, truss rod adjustment, fret dressing, new strings etc etc)
3. come back when agreed and pay for the work done.
It doesn’t matter if you don’t plan on playing live, a well set up guitar is a joy to play, and will likely mean you play it for hours, and that’s how you get good.
Id have a look on ebay or gumtree for a secondhand bargain and factor in £50-60 for a tech to set it up for you, brands to look out for are epiphone, takamine, tanglewood, and Yamaha. Always try before you buy with guitars, especially if theyre pre owned.