Then there is the more simple and less expensive method I used when I built mine: Stretched Sprue. Fortunately, I didn't have as many broken railings as that on my kit. Still, if you are a master modeller, go with those other suggestions, it will make for a much more attractive model.
As to valueof the kit, I'd heard from a member of my IPMS club that an original still in the shrink wrap is worth hundreds, but I've not been able to confirm that independently.
Good luck with your kit. :-)