On The Sewing Table: 18th Century Stays

Yeah, I know, I'm not posting very regularly. But it's wedding season. Sorry not sorry. I have finally started on my real live, boned, laced and very daunting stays though. I'm attending a living history event in Florida this January and want to go about my costume the right way. So I'm starting from the foundations up. I already have a few chemises, so step two are these stays. I picked up Butterick 4484 (out of print but still available), because it had everything I was planning to make.

From what I've read the stays in this pattern are just a repackage of view B on Butterick 4254, which many people have used with great success. Almost all the reviews say you need a muslin because this pattern is huge, and has a weirdly high back. Really for anything that's going to be a boned foundation garment it doesn't hurt to have a muslin. So despite my need for instant gratification I cut out a muslin. Even though I sized down two sizes this thing is going to need to be taken in a good deal, and that I can tell just from the pin fitting. 

It fits fairly spot on right now, and to actually be useful it needs to reduce a bit. There's some excess fabric in the bust it seems as well. Once I baste this bad boy together and try it on my body I'll know for sure what modifications I'll be making. I'm still pretty nervous about inserting all the boning, but hopefully it all goes smoothly. Anyone have any advice on this pattern, or stay making in particular?