I have made a few peach wines but never one that low an ABV. However this would be my educated guess on the best way to accomplish this:
3 gallon batch
18lb peaches (frozen then thawed out)
2 lb sugar (1 lb to start and the other to back sweeten)
3tsp black tea (I like earl grey)
3 oz golden raisins
4.5 tsp pectic enzyme
3 tsp yeast nutrient (dap)
2 tsp yeast energizer (any tan colored powder nutrient)
3 Camden tablets
Yeast (Lalvin 71b)
First de-stone all your peaches and then place in the freezer. Once frozen thaw it out in a brew bucket. Add in loose leaf tea, raisins, Camden crushed up, 1 lb sugar and water up to 3 gallons. Mix well until sugar dissolved. Let this sit for 12 hours. Then add pectic enzyme. Pectic enzyme is almost required in fresh peach wines to get them clear at all. They have a lot of pectin that needs to be broken down. Let that sit another 12-24 hours. Now mix in the DAP and aerate the must well. Pitch the yeast. Don't think an ale yeast will putter out at 4%-6% ABV. Wines work differently than beer and many ale yeast will go to 9%-10% ABV. That is why I choose lalvin 71b. I think it makes great peach wines. After 24 hours pitch in 1tsp of yeast energizer and mix well. After another 24 hours pitch in the last tsp of yeast energizer and mix well. Make sure to stir/degas the must twice daily for the first 4-5 days. Let this ferment dry and then transfer to carboy and airlock. Rack every 30 days till crystal clear. Just keep topped up with water, hopefully your brew bucket had a bit more than 3 gallons and you can top up with that. Just keep any leftover from the first racking in a pop bottle in the fridge. Once the wine stops dropping lees then add in 1lb sugar, mix well and bottle. It should self carbonate in the bottle. Check one ever 12 hours and once at the desired carbonation level you need to bottle pasteurize. Here is a link to an awesome thread on stove top pasteurization.
stove top pasteurization
Then you should be all done. This should be about a 6% - 6.5% ABV wine and ending gravity should be close to 1.01 which should be plenty sweet IMO.