Here's a web site with a couple options for tents - mostly associated with the Boy Scouts.
http://www.hufsoft.com/bsa51/page0002.html
I've sewn up around 6 tents over the past couple years with my simple home portable sewing machine. I use a heavy duty #18 Singer needle with cotton wrapped polyester thread. Having a large area to spread everything out for layout is good, but not really necessary. Making a detailed to-scale drawing or model also helps.
The "forester" style tent is an interesting design. But is has one ... drawback ... that many tents do - that long sloping side. You can't use a bunch of the "footprint" of the tent because the that sloping wall of the tent.
The simplest style tent that I use is called the Diamond Shelter, or Plow Point tent. It is a square tarp. You stake down one corner for the back. The opposite corner is tied to one pole, and then staked down tight with a rope. The other two corners are then staked down tight to form the "diamond". A "prop pole" is then pushed up in the center to give you your head room inside. Some tie a loop/rope to the center and tie it up to a branch/tree to pull up the center instead of using a prop pole.
If you add two triangular panels to the front, it then closes off the Diamond Shelter for privacy and a little more weather protection. And that starts to get it to more resemble that Forester tent.
Hope that helps.
Mikey - that grumpy ol' German blacksmith out in the Hinterlands