PC on a Few Bows

All Gold

Firey Dead Bow of Fortitude
Fire Dmg: 15-28 (req. 10)
Energy +5
Health +30

Crippling Caged Shortbow of Fortitude
Piercing Dmg: 15-28 (req. 9)
Lengthens Crippled Duration by 33%
Health +30
Inscription: "Strength and Honor"
Damage 15^50

Vampiric Grinning Recurve Bow of Fortitude
Piercing Dmg: 15-28 (req. 8)
Damage 15^50 (Not Inscribable)
Life Stealing: 5
Health Regeneration -1
Health +30

^^^
A Perfect sundering mod could be added if the value would increase

TY

Dead bow - 5kish
short - 5-10k

Not sure on grinning, maybe 30kish but wait for more PCs.

^^^
Adding a component for sale will, at most, add it's own value to your item. You may also lose money here as there's no guarantee that you'll sell them combined for their full values. Saying this, adding a 20/20 +30 to anything will increase the attention an item receives, as en mass, guild wars players still hold that as being the only combination to be truly perfect.

Imo: If the base skin is valuable enough to justify an upgrade for sale, then it may be worth adding just for the chance to sell faster (time is money), but if the item is worth less than a potential component combination keep separate and sell for max profit.

Edit - 5k for dead. Mistype.

Dead bow - Salvage +30hp and sell for 2-3k, if bow stays behind try sell for 2-4k.
Caged bow - 5-10k like wilderness said.
Grinning recurve - Hmm 40-50k I'd say, but then again, I'm not sure either