Hello and welcome.
I made a big long post and it all disappeared, had some talk about stanley bailey/record planes on ebay, should get a no.4 for no more than £25. look on toolitique for rough guides, probably at the very least a 50% mark up compared.
You need to be able to get your stock precisely flat and square.
ITS Ultex/Vaunt hones for a tenner a plate when on discount (often)
Marking equipment like a soba 150mm engineers square for a tenner at axminster tools, and whilst shopping there, a wheel gauge would be nice to have also, if a bit fancy.
A fairly long stainless rule would be nice, if you find one local for a tenner.
What about a car boot sale, you would get near everything you need for a few quid if yer lucky, vices (heavy postage costs)
a few rusty planes which are also heavy and will crack if dropped,
nice chisels, even though near anything would be OK , old oil stones, some are very sought after like pike mine lilly white washita, and a grubby old stone can be bought for a pound.
You might find watching a video or two on frame and panel construction
will describe all you need to know.
You could join with dowels, biscuits, dominos or the more traditional
mortise and tenon or loose tongues if you prefer.
I'd expect you might find Rob Cosman or Matt Estlea would have a heap of videos on the traditional methods or construction.
If you watch those, then also have a look at Franks workbench for some sanity if you're thinking all that fancy kit.
Much of it is snake oil peddling.
This new channel looks to be the real deal from what I've watched.
No highly edited stuff, just basic tools with a good understanding on how to use them well.
Have you got a bench, I'd think you'd be in for a frustrating time if you don't have one.
I'd sooner go Japanese than rely on a workmate.
I'll stop writing now, before I delete all my post.
Tom