ORIGINAL: mR JoLLy
I will be using a Laser 150. Recommended for taking off from grass as I will be doing.
Yes the wing is fully sheeted with 3/16" sheet (I guess medium to soft) and I will be glassing the wing after that.
I don't know what you mean by webs?? [

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JoLLy
umm... I hope you mean 3/32" sheet. 3/16" sheet and you don't need ribs, spars or webs.

Webs go in between spars. I think you called them packing.
I'm really undecided on the spars now. If you fly in a scale manner, then the balsa spars are fine. If you get wild with it, you should probably replace them with basswood or spruce. Either is fine.
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