I own the real thing but want to build a model of it. Willing to pay a "reasonable" amount.
Go to www.revell.com and search using the kit number you have.
As an alternative--go to your local hobby shop they might have it in stock or would order it for you
This should help you the kit lists for $21-24 if I recall correctly and thsi is reasonasble given what the kit contains for I have a kit like this built on my shelf