Hi there,
I took a look on the attachments which consists of 1 model + 5 layouts and they are presented very professionally, I can start immediately and follow you instructions to apply the required modifications, I have more than 4 years of experience with Autocad as I am a civil engineer, you can check my profile for similar tasks also I can provide a sample before awarding, and you will have my support for a week after delivery.
Thanks for your time reading my proposal hope to hear from you soon.
Regards,