There are no "new" Mid-Missouris; the label's out of business, and Mr. Dulak's now building under the name Big Muddy. #Here's his website; you'll notice, however, that his "products" page still shows the Mid-Mo line, from which I'd infer that he's building all the same Mid-Mo models as Big Muddies.
McCabe's may have an unsold "new old stock" Mid-Missouri; the M-4 was a top model. #There's a used Big Muddy with the pau ferro back and sides in the Cafe classifieds for $550. #Seems to me $500 would be a good price.
We all wish more music stores sold mandolins, but that's the world as it is. #You're making a good choice in playing a variety of instruments to find the one that best fits your tastes and budget. #You'll be getting a good general-purpose instrument, not particularly a bluegrass mandolin, but well-made and beyond most starter instruments.
Gibsn: '54 F5 3pt F2 A-N Custm K1 m'cello
Natl Triolian Dobro mando
Victoria b-back Merrill alumnm b-back
Stradolin Vega banjolin
Sobell'dola Washburn b-back'dola
Eastmn: 615'dola 805 m'cello
Flatiron 3K OM