#currently running as "pull", tho can run as "push" with minor mods:
#(root bash)
rbh=remote.backuppc.host
b=/var/lib/BackupPC/pc
cd /local/third/copy
sb='sudo -ubackuppc'
ssp="$sb ssh -p2222"            #nonstandard ssh port
ssb="$ssp $rbh cd $b"
from_to=("$rbh:$b/*" .)
fob=$ssb
df=($(df -m .))
prun=                           #prun=--delete-excluded to prune local/third/copy down to most recent backups only
echo df=${df[10]} prun=$prun    #show current filespace and prun setting
[ ! -s iMRFIN ]&&{ touch iMRFIN ||exit $?;}                                     #most recent finished set
[ ! -s iMRUNF ]&&{ touch iLRUNF ||exit $?;}||{ cat iMRUNF>>iLRUNF||exit $?;}    #most recent and less recent unfinished sets
$fob 'echo " --include=*/new"                                           #any unfinished backups
   for m in */backups;do unset f i                                      #look at all pc/*/backups files
   while read -r r;do r=($r)
   [[ ${r[1]} = full    ]]&&fu[f++]=$r
   [[ ${r[1]} = incr    ]]&&in[i++]=$r
   [[ ${r[1]} = partial ]]&&echo " --include=${m%backups}$r"            #any incomplete backups
   done < $m
   [[ $f -gt 0          ]]&&echo " --include=${m%backups}${fu[f-1]}"    #most recent full
   [[ $i -gt 0          ]]&&echo " --include=${m%backups}${in[i-1]}"    #most recent incremental
   done'>| iMRUNF ||echo badexit;head -99 i*                            #show backup sets included for transfer
rc=255;while [[ $rc = 255 ]];do date                                    #reconnect if 255(connection dropped)
   #note some special custom excludes are on a separate line
   rsync -qPHSae"$ssp" --rsync-path="sudo rsync" $(cat iMRFIN iLRUNF iMRUNF) $prun --exclude="/*/*/" \
      --exclude=fNAVupdate --exclude=fDownloads --exclude=\*Personal --exclude="*COPY of C*" \
      "${from_to[@]}"
   rc=$?;echo rc=$rc;if [ $rc = 0 ];then mv iMRUNF iMRFIN;rm iLRUNF;fi;done;df -m .