"...not much thing to do with moose hide in terms of fine clothes..." There's no reason not to be able to make or have made a fine leather coat out of moose hide. Made a sleeveless jerkin out of moose hide. Lined it with melton cloth. It's soft leather and heavy without the belt. It is extremely warm and comfortable though.
Elk hide is soft and warm too. Made a pull over out of elk hide. Much lighter than the moose hide. Both need to be lined if you want to avoid having tiny bits of 'lint' all over you.
"...have a wife cut & sew..." Sewing leather isn't quite that simple. Unless you bought her an industrial sewing machine, it's hand work. The average home sewing machine won't do it.
Tanning your own hides stinks. Your neighbours will scream. There are lots of kits and how-to's on-line and in books though.
There are taxidermists who will tan your hides. Not cheap though. One guy in B.S. charges $14 per sq ft for a deer hide. $32 per linear ft for a black bear. A deer hide averages about 8 to 11 sq ft.