well to answer your question
Flecktarn was introduced in 1990 and and yes it looks a bit like dot 44 (I have both sets, flectarn has much more green components than dot44). It was partially inspired by it. I fully understand that you re looking at starting an impression. The canadian force boots with canvas gaiters are a great substitute for the german low boots or gemaschen (I personally prefer Jack boots; unfortunately, they are fairly expensive (125$ a pair) so I use east-german jack-boots that are pratically similar with the exception of having no hobnails). For the uniforms, smocks are cheaper than tunics (you can get a M42 oakleaf A for about 60$ with shipping) and I believe the matching trousers are about 80$ with shipping. The fieldcap is roughly 35$ with shipping. A complete sets of flecktarn BDU is fairly cheap; I got mine for 43$ (with cap, trousers and tunic). Depending on what you want to buy first, you should consider the enlisted man's belt of the respective division with the belt buckle combined with a flecktarn set(they are about 35$ and they will greatly enhance your impression) combined with canadian boots with gaiter canvas. That would give a somewhat respectable results for under 200$. Or if you want something that we will be slightly more authentic within your budget and you are decent a sewing, you should consider the swiss tunic add peddle buttons and the insigna. For about 80$, you have a nice tunic that is period correct for mid-war.
http://www.militarytour.com/Reproduc...rms/39Swed.htm
When it comes to the stg44; it has some drawbacks like high cap only and you will have to downgrade the spring to a m120 since it fired about 430fps with 0.2g BB stock. I believe you can order one from the retailers for about 425$.