DeX is dead on.. You're not going to see any performance gains from that pulley. But it's clear that is not your goal here, so we'll go easy on you.
Instead of spending $90 on that thing, I'd take your pulley off and just spray paint it with the color of your choice. Sure it won't look quite as good as anodized metal, but it's such a small piece, nobody will know unless they look really really close.
Here's some suggestions from your's truly: Glitzy and Shiny metallic do not necessarily make for great clean engine bays, unless you add clean and simple with them. Even a stock engine bay can be beautiful if it's clean and glossy. Some of the best engine bays in the world are the ones that are simple. Get rid of excess wiring, piping, and parts that are not needed.
1.) Clean the heck out of that engine bay!
2.) Get a nice cold air intake pipe. It will clean up the bay by replacing old dusty plastic with nice metal, but more than that, it will "clean up" the engine bay by simplifying things, removing excess tubes and hoses and making things look more organized. Then you can route your air filter down toward the wheel well and get it out of sight. Plus this will actually net you a few hp by getting you some cooler temp air.
3.) Plug wires and silicon hoses are great plans... good idea!
4.) Aluminum overflow tank is nice, but I'd go with one of the round tube ones from this thread.
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5.) Send your valve cover off to NICO's resident powder coater.
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6.) Rotorimp strut tower bar. It will look nice, but this is 90% for performance gains. It will really tighten up the front end and solidify the car a bit more.
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7.) Polish the intake manifold runners and the exhaust manifold heat shield. Get a dremmel or some rotary tool and set aside a couple hours to polish the heck out of the intake manifold runners and heat shield. If you wanted to you could just get some high temp silver paint for the heat shield.
8.) Cooling panel. Probably not very cost effective, but looks awesome on 94_240sx car.
9.) Strut tower plates from 94_240sx's car:
10.) Read more from 94_240sx's thread:
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Good luck and happy modding!!!