First, congrats for your initiative and work on QRL.
But Quantum Resistant Ledger can not be tested without a Quantum attack, even if you apply theory and mathematics, we are still far from Quantum computing and have no insight about its capabilities.
Thanks. But we do know already that Shor's Algorithm had been used to factor small numbers with early quantum computer prototypes. It is true we may be some way off from such machines breaking ECDSA - but the honest answer is we cannot be sure!

Update: I have begun implementing POS on the test node.