I've gone through the gauntlet over this case prospect myself countless times within the past year. And the jury is still out.
My original faux case has one minor laminate tick on the top panel near by the cutout, and it;s no longer objectionable after some resto work, so I felt best to leave such be. Leave the unit original.
For me, the style of the 3-piece cab is unique, it is signature to this unit. A 4-sided case, sure, do it in whatever woods you wish to afford.
There for sure are artisans out there, that making 3 measly pieces like these in any wood and wood finish you want can be had. Bubinga, Koa, Maple, various Walnut woods Ebony-etc, and a vast variety of finishes applied.
Thing could look like a PRS 10-top Guitar with a finish a foot deep, why not?
I wanted that 3 piece Case from Audioclassics, even ordered one (Walnut), and thank Richard our forum member here for talking me out of the purchase and quickly canceled the order in time.
My personal ultimate pick would be just another 3-Piece affair, done as total stock as per blueprint design. But made with proper materials.
I could live happily ever after with just a properly done walnut case like Audio Classics has done, either solid wood or MDF Laminate, but at least provide a 1-piece Laminate for the Top Panel! AC's is not, it's 2 pieces, but also believe solid wood, not MDF.
This should not be hard, and especially considering the costs they ask versus possible others. Yeah, go ahead, add Tax and Shipping Charges.
I might conclude if you really want such, bypass all you know, and all you've seen, and seek a custom entity. Whether it's a Cabinet Maker, Guitar Shop, Custom Turntable Base Company, etc.
Realistically, and from a manufacturing standpoint, I would think Laminates might be easier to work with, and still provide beautiful end results if correctly done.
There sure was not a darn thing wrong with those two sweet Cabinets I bought for my two MC-2105's back in 1974.
I'll also personally confide as a 4100 lover. I did of course want to see how the 4100 looked totally naked!
Yeah, it looked OK, but I did also note that the right side panel on my 4100 has paint missing like it was scratched.
Why, and how such occurred is a very good question? Likely a maniac Tech who threw it all over the bench.
Such does not come like that from McIntosh.