It really depends on how good you are at finding fabric, how good you are at picking your capsule pieces, and if you've got the leisure. Also how quickly you need something and if you can borrow someone for any Two person preferable stages.

And now even 'pricey' fabrics aren't needfully very good quality, and life is too short sewing bad cloth.

The Lost Art of Dress gives an account of a woman who back in the day had such boss skills she could look at a thrift shop item, know that it was sufficient for her cut down needs, and then utterly remake the garment into something no one would guess had had a prior life.