That price is very low. Your only other choice is to keep what you have and paint the wood.

I thought folks were getting away from the iron rail, and just using a simpler dowel, and painting them? Why not just keep the rail and replace the individual dowels with a simple iron one, or a slim round or square wood one that is painted shiney black? In this example, the main rail is similar to what you currently have while the dowels are black aluminum? Surely just finding the dowels would not be that difficult or expensive, and one inch wood black ones might be cheaper? https://www.amazon.com/Western-Cedar-Railing-Aluminum-Balusters/dp/B00R8EPZXI/ref=asc_df_B00R8EPZXI/?tag=hyprod-20&linkCode=df0&hvadid=309832753834&hvpos=1o3&hvnetw=g&hvrand=5200241265288590209&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9027324&hvtargid=pla-569424060120&psc=1&tag=&ref=&adgrpid=60439547903&hvpone=&hvptwo=&hvadid=309832753834&hvpos=1o3&hvnetw=g&hvrand=5200241265288590209&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9027324&hvtargid=pla-569424060120

https://www.amazon.com/Black-Aluminum-Flat-Baluster-pack/dp/B07192M51C/ref=pd_day0_hl_60_1?_encoding=UTF8&pd_rd_i=B07192M51C&pd_rd_r=b4e3d967-1557-11e9-8585-ebc516039c37&pd_rd_w=V0oEb&pd_rd_wg=sOZqz&pf_rd_p=ad07871c-e646-4161-82c7-5ed0d4c85b07&pf_rd_r=8898F62323PZZ0FW3PWQ&psc=1&refRID=8898F62323PZZ0FW3PWQ These are mounted on the side of the handrail. That would not be hard to install! You could choose to mount them inside or outside the rail, as is best for you.