Hello ,
I am George my opinion is to make the database on the open office suite because its totally free and totally adjustable, I can do it to the microsoft office acess too if you want otherwise I could help you to download the programms I mentioned above and Install and even help you on Skype how to add a customer and do any change you like from the comfort of your home .
This is my opinion about this project I can do more if you want
I've the qualifications for this kind of job Offce Specialist Certication , I am studying computer engineering since 2012 I can answer you any question you like about this project and make the best for your comfort !
Have a nice day I hope we have a deal together thank you for your time