So for the equipment:
Full Druids Armour with one major vigor rune
Fiery Longbow of Defense, but you can also have a fiery shortbow for the armoured cave spiders too if you want...
Attr Points: (I haven't done either attribute point quest so here was my stats)...
Expertise - 11 + 3
Wilderness Survival - 9 + 1
Marksmanship - 8 + 1 + 1
The extra points if you have done the quests should go onto Marksmanship.
Skills:
Escape {E} - Duration 16s - 30 recharge
Lightning Reflexes -Duration 11s - 45 recharge
Whirling Defense -Duration 19s - 60 recharge
Savage Shot
Distracting Shot
Read The Wind
Troll Unguent
<FREE SLOT>
Note: When I tested the build I used throw dirt for my free slot to make killing spirit woods and spiders easier, but it was pointless me taking it seeing as I never used it

Spirit Shepherds: These are very easy as long as you do not aggro them. Keep out of spell range and keep up RtW and Troll and youll be fine.
Spirit Woods: As long as you keep up your stances (order of casting is lower down the page) and troll and read the wind you can kill them easily. Distract their Troll Unguent too otherwise you will be there for a long time.
Armoured Cave Spiders: These are the toughest creatures you will face in the forest, and if you so by chance as to aggro 2, your only hope is to lure one away from the other.
Firstly, cast RtW, then troll, then escape to begin the attacking. Savage shot their apply poison, and distract their healing spring. Keep up Rtw, Troll and stances at all times, and when the spider tries to apply poison again, distract it. By now you can relax, and as long as you keep up everything, its a gonner. Watch out for healing spring 2, and all possible threat is eliminated.
Worms: Do the Same as you would with Spirit Woods, keep up troll, Rtw and a stance at all times, and interupt choking gas and soon you'll be picking up their loot.
Order of stances:
1.Escape for 16s
2.Lightning Reflexes for 11s
3.Cast Whirling Defense for 18s
4.Recast Escape
5.Recast Lightning Reflexes
6.Wait for 3 seconds
7.Cast Escape
By now over 1 1/2 minutes has elapsed, which is more than enough time to kill 2 spirit woods or one spider, IMO. But if it hasn't you'd have to tank out 14 seconds before either whirling defense or Escape is activated again, which isn't that hard to do. If you're really concerned about tanking damage, throw dirt is always an option

Here are some screenies...
I know this build isn't as good as remmeh's R/Me build, but I posted this so any sort of ranger can use it...