Thanks @mix29k for providing the 709 710 chain download at https://mega.nz/#!gUZHVaJR!rwj7-NqbHkHksrv1xkXVY1V8aWmX5kt82K1ixErTQWQ
Height: 7097647 Date: 2019.07.27 Verification: true
Start with nonstandard port 11974 to sync; restart with standard port 11973 once up to date.
01:10:38

verifychain 4 30000
01:14:11

true

Checksums:
Name: QRK-0.10.6.2-snapshot-7097647-190727.rar
Size: 3770348256 bytes (3595 MiB)
CRC32: 48ED67F0
CRC64: 0D8B80EEB35F3EC6
SHA256: 1EB8CA955328660EC9648CEF3910B731B7C5AAE0DFBF50607317DEBE4A215404
SHA1: 540C5266C5132F53F763B80DD2E1863F78D79953
BLAKE2sp: 4BF9A2EB92FF40A7B841A93C480DA138CDFAFDA10963A532C1B273575AB2B4B2

Recommended quarkcoin.conf sample follows:

printtoconsole=1
rpcuser=
rpcpassword=
rpcallowip=127.0.0.1
port=11974
txindex=1
listen=1
server=1
daemon=1
logtimestamps=1
maxconnections=16
connect=101.187.42.235:11973
connect=123.243.123.106:11974
connect=58.96.77.27:11973
connect=58.96.73.95:11973
connect=110.142.208.3:11974