I think the best way to do this is to check ebay for 2nd hand equipment. You can get a 100 pound camera for 40 if its second hand and you are lucky.
Also don't bother buying lenses, just buy lense attachments which are 10 pounds that you can put in your camera lense to get wide angle, macro etc.
and for the lighting. Just get a bunch of table lamps at home and open them informs if you. You don't have to buy those fancy expensive studio lamps.
Start with what you have at home and then over time buy more equipment.
Many youtubers started off with their web camera.