Coming on here is a very good first step.
Well done with the saving but I'm afraid that unless you get very lucky then as Phil said you need to be very careful what you buy with your hard earned £1000!
Have you considered joining up with someone else close to you who might be in a similar boat and sharing the equipment and learning experience together? £2000 goes twice as far!
Or maybe a local pilot might let you buy into the sport and share their gear and wisdom with you for £1000?
You could spend the money purely on training with an instructor who has school kit for you to use, that way you get good tuition, get to know whether this sport is for you and it puts you in the right environment to pick up any bargain kit that pops up.
There are many ways to skin a cat and if you've taken on additional jobs to get this far then you are obviously committed to the idea paramotoring, so I wish you good luck!
Best regards,
Ian.