I certainly would be interested in developing a long-term relationship which is something I should investigate in further dialogue. At the same time it is a good point that they approached me for this model specifically so I could bump up the price. Also, a good idea to get a written contract! My guesstimate (good word) of how long I used on this model is kind of uncertain, because a lot of that time was spent learning things or being an obsessive perfectionist – in other words, I used a long time and I don’t know if I should count that extra time if it amounts to the model becoming overly expensive? But perhaps that’s normal and part of the process.
Anyway, lots of things to consider! Thank you guys for very helpful and informative replies, and the kind words! I really appreciate it! <3