Translation and voice over from English to Spanish

I'm seeking someone to translate and provide voiceovers for an online training course from English to Spanish. There are two videos, one 35 minutes long and the other 25 minutes. The English script and subtitles are provided.

I prefer a female native voice and request a voice sample (no computer-generated voices, please). The project will involve creating two audio recordings, ensuring an exact time match for seamless video merging, eliminating gaps and white noise.

Please provide a reasonable price quote and specify the program you use for recording and editing. Additionally, let me know when you can start and how long you estimate it will take to complete the project. I'm looking for someone who can begin as soon as possible.