If you don't lacquer them and they do get damaged it's easy to replace them - If you do lacquer them then get a stone chip or some such other you've made a lot more work for yourself... :?:
Got some helicopter tape which I use for frame protection, but feel it's a bit thick for covering decals - you can actually see the edges of the tape which I think will spoil the smooth lines of the decals.
I got lazy and bought a pack of precut stuff called Bike Shield it is slightly discoloured but it makes the garage queen a rider and thats currently why I am enjoying my Rocky so much because I dont have to worry I recon it can be removed with care and still leave the stickers intact because it seems that the adhesive isnt too agressive