A used small practice amp might be a cheaper option once it's all put together. Not as much fun, I know. But a good amp is (IMO) a better investment than a good guitar, and can make even a cheap guitar sound good, whereas a bad amp can make even a great guitar sound bad. So get something workable to start with, but if you can, don't leave it too long before sorting yourself out a good sounding amp. I still think valve amps sound best, but today's modelling amps are now so very close and so much cheaper (and lighter). So I'd recommend not spending too much on a first/intermediate amp, but minimise outlay and start saving for the amp after that.