Shipping...see attached screenshot. Yikes.
Why are shipping rates are so high to Juneau? I looked at the Juneau airport page, and it shows big aircraft, so I assume air transport isn't a huge problem.
Kaitsu, given the boot and blade costs, if I were you, before trying to reshape the boot and blade, I'd try making a shim by taping the underside of the boot with many layers of cloth athletic tape, though I've never tried that many layers - it's cheap. If that wasn't stable, I'd try making a hardened leather shim, which would also be relatively cheap. Both of those would be easy to reverse if they didn't work well. If neither worked, I would want to first try making similar amounts of shape change to a broken down used Edea boot if I could get one for cheap or free, and a discarded blade. Or trying the the epoxy filler. But I'm often cautious about such things - because I know I often make mistakes.
I guess your background gives you the confidence and knowledge to proceed less cautiously. Let's hope nothing breaks!
Then again, the Edea power wedges seem pretty cheap, if shipping isn't too high to your location. Maybe you could order two pair, in case one isn't thick enough. And it seems to have Edea's approval. BTW,
The original link is working again. I assume you would still need to sand them to get the exact right shape, but that might be easier than crafting something from scratch. With the wedges in between, you might need slightly longer screws, but that isn't a big deal.