Integrate Sameday extension with Quickcheckout extension for Open Cart

I am looking for a Freelancer to help me integrate my Sameday extension and Quickcheckout extension for my Open Cart 3.0.2 version. Both extensions are currently installed, thus the primary focus of the integration should be on optimizing the speed of the checkout process. The integration should allow for a seamless user experience as well as advanced customization options.