I will buy the best speakers first according to your listening taste, budget, and WAF. Then start saving again and hunt for the appropriate amp that will go well with your speakers.
How do you know what amp to buy if you do not know how demanding your speakers are? Just like you want to buy the tires first when they are on sale without knowing what car you are going to buy.
If you have your dream speakers, you will have the motive to get extra cash (legal or not) to get a good amp asap. You will suffer a bit in the short run. If you need 5 years to save up the money for the amp, then it is another story.