We have just released a masternode tool to enable support for hardware wallets and masternodes.
Currently this is in a testing/alpha phase but source code is available for all.

Once we have some more users to test we will released binaries and move into beta.
If you would like to test and need some help please let one of the staff know.

Supported Hardware Wallets:

Trezor (Model One)
Trezor (Model T)
Ledger Nano S

https://github.com/zyrkproject/masternode-tool