It looks like if you want a 327 Federal Magnum today, the minimum entry price for a S&W in that caliber is going to be something over $1200, if you can find one. The three Model 632s in 327 that actually sold on Gunbroker in the last 90 days averaged $1400. Of the two currently on auction, one is at $1274 with the reserve not met, and one has a starting bid of $1500 with no bids. That's pretty rich territory. (The few K frame 32s I've seen for sale are even more stratospherically priced than the J frames.)
I have a 31-1 that I can easily have reamed from 32 Long to 32 H&R without much expense or apparent risk. But I've never heard of anybody even thinking about reaming a J frame 32 Long cylinder to take the (3x pressure) 327 round.
Soooo, if you want a 327 to shoot now and aren't made of $$$, it looks like the only real choice is Ruger, which still makes the LCR double action, the SP-101 single/double action, and the single action Single Seven, in 327. All are barely a third the price of the few, rare, S&Ws out there.
Are there any other choices?