...here is a link to a 5kg bale at Amazon for $16.55 and it's eligible for free shipping on orders over $25.00 so if you ordered 2 of them the shipping is free, that would give you more than enough coco for at least the rest of this year, if that is you mainly follow my lead, if you start filling 5 gallon buckets with coco you can go through it pretty quick.
COCOTEK 5KG BAIL
oh yeah, one 5kg bale is about the size of 2 boxes of cereal glued together, not exactly but sorta, anyway, one bale, once you add water, expands to fill a fairly large bin and that coco fills 8 of my 6liter hempys with enough left for maybe another run, so close to 2 cycles per bale and you want a second bin for the coco you take out of your pots after harvest so you can use it again, you can actually use the stuff 3 or 4 times once you learn how to work with it,
...and here is a link, also at Amazon and also eligible for free super saver shipping to a roll of plastic fencing that looks like one heck of a deal, it's a 4ft x 100ft roll so more than enough for your needs and it looks plenty sturdy enough for your needs as well and for only $31.91.
4-by-100-Foot Warning/Safety Barrier
so that would be 2 bales of coco and 1 roll of plastic delivered to your door for less than 70 bucks, not bad.
...you're gonna want a bag of grorocks or hydroton or lavarock or even 3/4 inch gravel for the bottoms of the buckets as well but you should find that locally because the shipping on something heavy like a bag a rocks will kill you, lol.
...oh, and i know that the local stores everywhere are seasonal, Lowes is Lowes, mostly, no matter where but it's still warm enough that you should find that fencing locally, heck, even in winter they usually just leave the shit outside in the same place anyway, ...grorocks you'll need to go to a groshop or some kind of specialty gardening center maybe, the gravel or lavarock you can get at Lowes.
peace, bozo