You stated that you have an assortment of yarn. This can be shredded, and used as dubbing. Shred the yarn into 1/2 to 3/4 inch lengths, and place those lengths into a dubbing loop, twist the loop. Wrap this loop forward, and then brush out with a small brass brush. NO NEED for hackle the dubbing will brush out enough to become the hackle. A few combed out fibers can make a tail. No need for marabou as a tail. The whole wooly bugger can be made from just blended yarn. brushed out and twisted in a loop. The acrylic yarn can also be brushed out into fiber which can be used much like craft yarn to make streamers.
Hollowshimmer (Joann Fabrics) makes a fine flashabou substitute.
I would suggest smaller lead wire, 020 unless your streams are extremely fast and deep.
Call your vendor, and tell them what you want to use hackle for, they will give you suggestions for the right hackle.
Thread should come from Gutterman as well. I made this cost comparison chart comparing the cost of just 2 popular thread brands with Gutterman threads that are equivalent. These threads are available from the US distributor Oshman Brothers The 3 that would be most useful are the Skala 200, 240, and 360. The cost for these threads is about 78% less than Danville, and 92% less than UNI. These 3 and the Wooly Nylon are all I use, and I only buy white. Any color I need, I can apply with a marker when I am done. Most of the time, the thread should not show except at the head, so that is an easy job. Of course you would need to pick up some empty spools and re-spool. I re-spool all my thread anyway, so that has never been an issue. I doubt that I will use up a 10,000 yard spool in my lifetime. These threads do come in colors so if you want to you could buy other colors.
Thread brand Ought Sz Denier Sz Tex Size Material Cost (100 yards) Cost Length Equivalent to
UNI 17/0 17 40 4.44 Polyester 2.25 Skala 360
UNI 8/0 8 72 8.00 Polyester 2.25 Skala 240
UNI 6/0 6 135 15.00 Polyester 2.25 Skala 200
UNI 3/0 3 180 20.00 Polyester 1.75
UNI Big Fly 440 48.89 Polyester 2.25 Mara 70
Danville Spider 18 30 3.33 Mono-filament 1.35
Danville Flymaster 6 70 7.78 Nylon 1.45 Skala 360
Danville Flymaster 3 150 16.67 Nylon 1.35 Skala 200
Danville Flymaster Plus 210 23.33 Nylon 1.35
Danville Flat Waxed Nylon 210 23.33 Nylon 1.35
Gutterman Sk 200 6 135 15.00 Polyester 0.15 $15.98 10940 M UNI 6/0 Flymaster 3/0 Gutterman Sk 240 7 108 12.00 Polyester 0.16 $17.40 10940 M
Skala 360 8 72 8.00 Polyester 0.09 $19.50 21880 M UNI 8/0 Flymaster 6/0
Costs for the Gutterman threads above, are from Oshman Brothers (the US distributor.) Lengths are in meters. There is a $25.00 minimum order, but some of these threads can be found on line. Wooly Nylon is sourced through Joann Fabrics, and the cost can be considerably lower if you use a coupon. My cost is usually closer to 40 cents a spool. I have used about 10 spools of Wooly nylon since I started using it. So far I have not run out of any of the larger spools. I use the Wooly Nylon on a lot of salt water patterns, when I am not using 2# mono.