My donor area is really bad as it was over harvested. Would I be suitable to get another hair transplant in the future? (Photo)

Hello firstly thanks for your photos and questions.
Your donor area doesn't look that bad. Thanks to the good photos you can tell if it is suitable for a future hair transplantation. 
Best Regards.

Hello, and thank you for your question.
Indeed, you can see the over harvested area of your scalp. There are a number of ways to go about this:
You could undergo another hair transplant, but using donor areas from your chest, beard, etc. instead of the scalp. This has proven to be a successful approach. 
Or, you could consider micro-pigmentation. SMP, or scalp micropigmentation, is a painless procedure that uses highly specialized equipment and unique techniques to carefully and expertly inject all-natural, color-tailored pigments into the scalp creating a completely natural look of the patient’s hairline. A typical procedure involves an initial consultation and two pigmentation sessions to achieve the desired results. You can wash your head the fourth day after the treatment and, during that time, avoid any strenuous activity that will prompt undesired sweating. Once the procedure is complete, the results of a Scalp Micropigmentation treatment can last up to five years
Gary Linkov, MD
Hair Specialist
Manhattan

Dear patient , the only value for money option given the outcome of the donor area, is scalp micro pigmentation. It I’ll improve the appearance and you won’t have to worry anymore.
Best of luck