Mocivnik

So, since I'm quite new to the leatherwork, I'm also new to machines. I do all of my work for now by hands, which consist of stitching together (most of the times) 2-3 layers of 5/6 oz. or 7/8 oz. veg tan leather, but I would like to upgrade that with a sewing machine. Since I come from a very small country and don't have much of a choice, I'm quite limited to only 3 companies, that sells their leather-sewing machines (their distributor is in my country only) and we're talking about Durkopp Adler, Golden Wheel and Juki, but I don't know the proper models. Let's just say, that distributor can get them all :D The budget isn't something much, but I'll try to get what people here would recommend, so any recomendations are welcome! The things I would like to sew are mentioned before, so 2-3 layers (and occasinaly even 4 but that's rare) of 7/8 oz. veg tan leather. And the optional would be with double stitching, such as shown on picture below:

Thanks both, Weaver Leather Supply and Mattsbagger for your replies. But If I got it right, I'm supposed to first wet the edges with water and sponge and burnish it with wooden leather burnisher, then dye it with same dye as I dyed the surface and burnish it again with wooden leather burnisher. After that, I should apply Gum Tragacanth on edges and for the final time, burnish it with wooden leather burnisher. Because I'm new to this, here's my question: Should I use the hand burnisher(the cone with grooves) or is the machine better(the dremel tool)?

Is that the best edge finish possible? Or in other words, most beautiful? And how to deal edges with Gum Tragacanth properly? Is that kind of edge finish reachable with Tragacanth?

First of all, a great hello to everyone from Slovenia! I'm a very new to the leather, although I had wish to sew it by hand for a long time before. So I came as far as trying to sew the first axe sheath for a start. I've managed to finish it as far as it comes to the edges. Here are 2 pictures, which shows my current state. I'm using 5/6 oz. veg tan leather, which is treated with several coats of Fiebing's Pro Dye (brown) and colorless Fiebing's Resolene. I'm stuck here, because I don't know how to properly finish the edges, neither would know, what the proper edge finish is. As far as I've managed to read about the leather, I came to the fact, that Fiebing's Edge Kote is one of worst possible finishes on leather sheats and looks very amateur. So I've ordered Eco-Flo's Gum Tragacanth for finishing edges, but I'm still not sure about it. Am I supposed to dye the edges before I use Gum Tragacanth? Are the finishes on picture below proper edge finishes or are there any other possibilities to look properly? (the left one) And if so, how am I possible to reach them?