As everyone else is hinting to, alot of these cottage gear manufacturers make very high quality gear for very competetive prices that is highly customizable. Names that come to mind are zpacks, mld, ula, enlightened equipment, gossamer gear, I know there's more just can't think of them.
Also as others mentioned maybe a pack with removable frame would be suitable. I have a ULA ohm which is around 22oz or so with frame but I don't use it much over my zpacks zero (frameless), zpacks also has the exo which is great.
Quilts are a great way to lighten up too. Refer to a previous post about MLD/zpacks/enlightened, depends on if you want synthetic/down. You can get a good synthetic quilt for not much heavier than down but it wont pack down as small. If you feel comfortable with down or your climate is suitable for it then by all means go down.