I buy all my supplies at Joanns with coupons. You save alot of money that way.
Basic needs are, 6 1/2 by 24 ruler and a 6 1/2 by 12 ruler.
24 by 18 cuting mat.
Rotary cutter.
Small scissors for cutting threads. Thread.
Flat head pins.
1/4 inch foot for your machine.
Walking foot if you are going to quilt it yourself. Bent safety pins. Or basting spray or fusible batting.
Iron and board.
Thats just the very basic supply list, you will collect much more.