Hello; I haven’t been on for a while….been busy looking for jobs and working on bicycles; I’ve managed to get my hard-sided pannier project underway and done..in the space of one hour.
the boxes before being put on; yes thats a 1 gallon water jug; each box can hold 2.
the mounting hardware; 4x Tactical Tailor MALICE clips; these have 3/16 holes for 6-32 screws, mostly used for mounting kydex holsters and hard sided accessories. I have seen them used to hold heavily loaded rucksacks on the insides of vehicles; 
marked locations for the MALICE clips to go in
drilled holes, and mounted MALICE clips with 6x 6-32 bolts
yeah the bolts are a little long…replaced with shorter ones 
first one on the bicycle rear rack
showing the first system mounting; I didn’t like how the tabs were at the bottom…and sticking into the tire’s path.
showing the rough locations; this is to ensure that the panniers don’t slide back or forward into the cantilever brakes. 
both of them mounted; with revised system; where the tabs are on the top instead, and with revised bolts
total cost of materials;
$25 apiece for Plano Large Marine Storage boxes from local sporting goods; could’ve paid less on Amazon but I didn’t have patience lol
$5.23 for set of 4 Tactical Tailor MALICE clips
$1.29 for 10x 6/32×1/2″ machine screws with nuts package, 2x packages
$.50 for baggy of10x 6/32×1″ machine screws with nuts; from Habitat for Humanity ReStore
much cheaper than spending $2-3 each for J hooks, or buying BikeBins hard panniers, yeah I could’ve saved more by getting laundry/kitty litter buckets, but I need something that can carry books/art supplies/clothes/equipment/tools without compromising with sizes, and the nice thing about these, they have trays and smaller storage pockets on the lids for misc items; I am planning to find a few rope cleats so I can lash things across the top of them.
Cascade Tactical 