And all the while, I thought you were a man!
You only need to replace those back molars if you think you aren't eating well enough with the teeth you have. The shortened dental arch has been shown to be sufficient to meet our masticatory requirements, so I would focus on keeping the teeth you have in good health and reconsider replacement teeth only later.
I look forward to hearing more about your experience.
p.s. what do you design; Pauline is into dress design.