You'll likely get lots of differing opinions on this. While zooms have improved greatly in the last few years, older models were usually considered to suffer from too many compromises in optical design. As a result, many folks prefered to shoot only primes back then. But, if the unit you're considering would work well for what you're doing, and the price is consistent with what that model is currently going for on eBay, it might be a good choice for you - at least as an interim lens.
As you gain experience, however, you may find that investing in the best glass you can stretch the budget to afford will result in better images. Note that Kikon, like most current leading manufacturers offer "consumer-grade" and "pro" lenses, the former being good, and the latter being superb. But, be prepared to sell off the first born son.