Sewing is a skill. A true skill. The learning of it takes a never give up attitude. Also, You’d better have good vision, a good machine, a big area to work in, and the patience of Job.
I’ve built a lot of gear that I use. I sewed my top quilt on my hammock, I’ve sewn several others up for people as well. I’ve made hundreds of game bags. I’ve sewed so many stuff sacks I can’t count. And, I made a hammock tarp or two. They’ve all worked/are working great.
That’s a big jump into it for sure. If it were me, I’d pay Don to make my bag and use the one you have for this immediate need. Spring is here. Trout fishing, Turkey hunting, the crappie spawn, and soon to be kayaking river smallmouth. That’s living. Setting in front of a sewing machine, on an undersized table, with yards of fabric all waded around you, while you try to thread the sewing machine needle with underpowered reading glasses, pales in comparison.
Life is short. Sewing a pack, unless you have and meet all the required criteria stated above, will no doubt shorten it. I can’t stress this enough. I’ve been married for 19 years. The only time my wife and I grown so impatient with one another during this time, was when I was seeing a lot. At this point in my life, I’d rather take a 9 iron to the shin than sew up a pack.