Following up on this to share results.
1. Harbor Freight Fluid Line Clamps.
Result: Fail, not possible due to stainless brake lines.
2. Regular bolt to replace banjo bolt.
Result: Fail, not possible due to these calipers don't use banjo bolts.
3. Just power brake it.
Result: Fail. Possibly driver error, but it just wasn't happening.
4. Remove Rear Calipers
Result: Success.
Wood in place of the brake rotor to keep the caliper together and have some pedal feel. Then zip tied out of the way.
Sorry for the bad quality...
