Hi, I would love to work on this project.
Highrise has a pretty standard PHP API which can be communicated with through cURL and PUT/DELETE/POST/GET verbs, but since you only want to insert data, only POST will be needed.
Do you already have designed the form or would you like me to write the HTML and CSS to replicate the form you showed in the Word document as well?
Contact me to discuss your project more in detail.
Best regards,
Kauri