I brewed it 2 weeks ago and transferred to secondary today. I did have a mishap with it where I went to transfer it yesterday and found the temperature controller on my chest freezer fermentation chamber had stuck on and it was down to 22 degrees and partially frozen. I let it thaw out overnight and transferred it today, tasting a hydrometer sample before and after adding the peppers and it tasted amazing. For the peppers, they include a 1 oz package of dried chipotle peppers. I seeded them and chopped coarsely, putting into a muslin bag in about 12 ounces of vodka for 2 nights (was going to be one, but then I found the frozen beer).
I'm pretty happy with the way it tastes, I don't think I'd change anything with the recipe (besides the part about the beer freezing at the end of primary due to the controller failure, but hey, it still tastes great).
With the base recipe, before adding the vodka/peppers to secondary, my ABV was 6.7%, if that affects your recipe modification plans at all. I imagine your proposed additions to the recipe would make it a pretty high-gravity beer, as its already moderately high.