Access Bankng Solution

I am going to develop a Banking Solution for very small branches of a Bank. The branches are standalone and no remote transactions will be made i.e. only the individual branch will be under networking and there will be no networking between the branches. The branches have maximum 10000 (ten thousand) customer accounts, maximum 200 daily transactions (120000 yearly including processed transactions i.e. interest, charges etc.) and maximum 3 to 4 concurrent users. The solution will provide voucher generation, interest calculation and interest anticipation, batch posting etc. facility. The system will generate over 100 reports, some of them are too complex (manipulate data from several tables, calculate, summaries, make group etc.).