@coco25
#1 pick a solid color. Patterns would not work
#2 as you take the cover off, write on the back of each piece what it is and what number it is as to where it goes. Example; left side facing, end piece #1, then; left side facing, end piece #2 and so on
#3 read some books, with lots of pictures
#4 you would need to buy new cushion foam, new cotton batting, new polyester batting.
#5 you could go to an upholster and get buttons made for the back.
#6 use the old pieces for patterns
And lots more, if you get serious about it, I'll get more detailed
I used sawhorses with a 2x6 top to put the furniture on to get it off the floor. You would need a heavy machine to sew the fabric, most home machines won't get there.