Yes, interior furnishings really add up! Plus, they are very timestaking if you DIY it. I tried to keep costs low, but here's my expenses:
Foam (6") 475
Cushion Covers (Fabric) 60
Zippers, thread, notions 70
Overstuffing for cushions 40
Spray adhesive (cushions, countertops) 35
Curtain Fabric 150
Curtain Lining (blackout cloth) 50
Replacement Curtain Fabric 40 (I burned a curtain with a candle
Snap tape 42
Not shown here is about $75 spent on thrift store curtain fabric that ended up eliminated. I resold some of it to a friend and will put the rest up on ebay, so I hope I won't lose too much on it. I also spent about $20 extra trying to find the right kind of snaps to fit in my carrier system.
That's why I'm taking all my cushion covers off while we do the rest of the work and get it laundered and resealed with DWR!
Your curtains and cushions look great with the wood floor--very nice!