90872 feederfund clone

I'm looking for a script looks like feederfund.com. escrow payment will be done. 1) it must be capable of maintaining a balance (ideally, individual balances for multiple plans) for each member. 2) it must support open-ended plans i.e. the plans have no set end date. 3) it must allow the profit percentage to be specified manually at the end of each earning period i.e. at the start of the month, the earning rate for each plan is entered and an interest payment is added to each sub-account for each user for the previous month's earnings. 4) it must allow the admin to specify how interest calculations should be made i.e. based either on the daily (sub-)account balance or on the lowest (sub-)balance during the period. 5) it must be supplied in full open-source format. Something like the FeederFund script would be ideal (or OffShoreClub if the manual earnings rate option was available). I am NOT interested in any of the following (unless they have been modified to meet the above requirements): GoldCoders, eComStudio, JDSoft, LogiSoft, HYIP4U