I think you should mention the possibility of making 'partial' hairpiece to order instead of wasting the time/materials to make a topper for people who just need to bring their temporal points down a bit to get rid of that 'horseshoe' hairline look.

For the price of a topper, or a little more, they could probably create two sets of temporal partials and use far less hair/labour in the process, actually meaning they would make more profits.