Hi everyone
First of all keep working on the things that u were supposed to do .but concentrate on getting the motor and battery specifications first. Right now our priority should be to get the motor nd batt specs. , the we have to find where to get them from( prototyping stuff can be done later on) . if u have any source, if u can speak to any prof or any engineer, pleaso do so and find out about the motors nd batt.
IC Engines CANNOT BE USED underwater so pack theat idea. concentrate only on dc motors.

Our report should contain two stages of buying things

Part A: Make the vehicle wired. Power will directly be taken from the mains. No Radio control. No battery. Hence the major components to be purchased are motors and the screws.

Part B:include the battery. Make radio control and/or automate it.

As u can see all our prototyping stuff mainly falls in part b so right now go all out on getting the motor and batt specifications. So these are the things to be done in order of priority

1)Find motor and batt specifications
2)Find where they are available
3)Make a timeline including part A and part B
4)Find out about the battery specifications and availability
5)Make a budget(seperate for part A and part B)
6)Prototype stuff as planned.