info on men's suit prices, including bespoke Savile Row tailoring (http://www.englishcut.com/archives/000016.html). Some of them are listed in pounds, but I figure you can probably do that conversion. *g*
as for designer drapes, it would depend on the fabric; expensive fabric can be a hundred bucks a yard or more (imported silk, linen, satin, etc., especially if it has hand-made elements like embroidery or special dyes.) Add a designer's costs on top of it, and you could spend hundreds or thousands, depending on how many windows you were draping. In other words, pick a number--you can justify it narratively.
no subject
as for designer drapes, it would depend on the fabric; expensive fabric can be a hundred bucks a yard or more (imported silk, linen, satin, etc., especially if it has hand-made elements like embroidery or special dyes.) Add a designer's costs on top of it, and you could spend hundreds or thousands, depending on how many windows you were draping. In other words, pick a number--you can justify it narratively.