Really you need to start with the design, never buy anything until you've drawn out when you are going to build.

Nema 23's and cheap stepper drivers you can buy on ebay with quick delivery.

I bought one of these was delivered 2 days later
https://www.ebay.co.uk/itm/Nema-23-S...g/392150487316

3 of them would make a nice X&Y drive if paired with a decent frame, slides and ballscrew.

Although the Stepper Drivers I use you can only buy from China, Alixpress is the better place for them.

Linear rail and ballscrews will come from China these will be your long ship items.

Expect China to take from 21-28 days I have always got import tax on ballscrews & linear rail. The stepper drivers slipped through tax free.

Also are you going to belt drive or direct coupling?

This is why you should start with a CAD model, someone has to make you plates after all and do not underestimate this part, for many people it's the hardest part of the build.

You will find people on the forums to make them, expect to pay but a lot less than a machine shop.