Florist estimates?

I need price estimates from Florists. I need (all fresh roses):

1 Bridal bouquet - nosegay
2 MOH bouquets - nosegays
4 BMs bouquets - same as MOH but smaller
2 FG baskets

1 Groom boutounierre - rose
1 Best Man bout - rose
5 Ushers bout - rose
1 Ring bearer bout - rose

2 Mothers corsages - wristlet
8 corsages - pin or wristlet
8 bouts

1 Dais arrangement
15 low centerpieces

2 alter arrangements (Does not have to be roses)

Any advice on how I can cut costs will be most appreciated. Thanks for your help!!!