We recently completed 2 Centralized exchange platforms for our clients using ReactJS and NodeJS with the live trade, Market and graphical representation of trades similar to that of bitmart, Cryptobiz, etc.
I will share the links in personal chat if you are interested to go ahead. We provide Website with Admin panel. We do have the mobile Applications ready with us as well in case you are interested to go with mobile applications as well.
Connect with me to discuss more in detail and start with the work ASAP
Cost and timeline will be discussed in chat after a complete understanding of customizations you need into our current available exchange platforms.