We are a team of desktop application developers with many complex and extensive custom applications to our credit. Incidentally, we have developed been working extensively for the logistics division and have developed something very similar. Our application includes maintenance of fleet. Infact we have also developed an application for heavy equipment. I have seen the reference application - it is very extensive and for car rental. I suggest that you provide detailed specifications - flow, fields, features/ functionalities. This will help me to assess scope of work more precisely and also make an informed commitment. I will then revise / confirm my bid accordingly. I ensure a very thorough job and also assure you of support if you need changes/ enhancements in future.