HAY SANTI
I HAVE a another idea That would be easy/ look good/ and not to heavy / YOU COULD USE OBECHI WOOD SKINS AT 1/32 THICK
I THINK THESE WOULD BE THIN ENOUGH TO NOT NEED TO SAND
DOWN AILERONS /AND WOULD BE A LOT STRONGER

YOU WOULD PROBABLY HAVE TO ORDER// I KNOW OUR LOCAL HOBBY SHOP DON'T CARRY THEM /
GOOD LUCK RON