The last couple years I have retired two 20 year old tents not because they were ripped or broken, but because I found out at an inopportune time they were no longer rain proof. Here in California we have searing, hi-UV sun and not much rain. Longevity and those UV rays damage the fabrics and it might not be apparent. A basic function of a tent is to keep you dry when it rains and water doesn't only get in through visible holes. How sure are you that this tent is worth saving?

and I also agree with the comments above... you won't find a dinosaur like that Eureka. Much better tents are available for less (time corrected dollars).