Bancor price monitor for Ethereum Network

I need a price monitor for certain cryptocurrencies on https://www.bancor.network. I basically want the same display as what is at the top of the page (in the from and to token box), but I want to display multiple trading pairs on the same page. I do not need any of the functionality of the page for buying or selling, only the price conversion from the selected token and ETH. The amount to convert of each token should be editable and correctly change the conversion rate just like the actual site. The price should match what is on the bancor site in real time, either through checking the smart contract through an ethereum node service such as Infura or by scraping the actual bancor website. I must be able to pick which tokens I would like to have displayed on the page, with the ability to add/remove tokens. This can either be available via the user interface or easily edited in a line or 2 in the program. Program should be written in JS with an easy to read display.