About the own node solution: Right now don't even have the disc space for a BTC full node (but could use some older HDD lying around) - my worry is, even after finally having a synced full node running and connected to mSIGNA, the sync process will be stuck somewhere - that's what people seem to report on their github a lot.
Would you like to borrow my full node for a little while?
That sounds interesting, thanks for the offer.
Not sure if it's worth it for the few sats remaining, how would that actually work - Just try to connect to it via the right address?
Does your wallet simply include a setting for the node IP address and port to sync with, or does it store the wallet there too?
If the latter, I am thinking on the lines of running the mSIGNA wallet on my box and issuing RPCs to my node to try to fetch private keys or something like that - so not really decentralized but I guess if you have no other way to access the bitcoins inside the wallet then you probably don't have another alternative than to run a Bitcoin full node.