What makes you think "less dogi needed"?
To hide the ugly crafted armors, yeah..
But dogis on their own are still unique and cool to have.
What i suggest is a seperate/different thing.
Also, as long as they would make an item for this armor swap, put it on shop,
make it tradable so ppl could buy them and sell for those who cant pay,
is still a way to make money!