Need advice on Linear regulator power supply

We r given a theoritical project on Linear regulator power supply.
I need advice from this board regarding the same.
The input is as usual 230V,50Hz and output is -5V,1.5A

we r supposed to use a vol regulator IC in last stage, which is be IC 7905.
the architecture will be

(input)-(LPF)-(Transformer)-(rectifier)-(Filter)-(Vol regulator)-(output)

few details which i have are
* X'mer is in centre tapped supply.
*use 79XX series vol reg.
*use heat sink

what i need to know
*What are the filters i am using at various stages and why? or why am i not using other filters?
*what rectifier,transformer,vol reg is most suitable and why?


the actual problem statement is
Q) Design a LPRS with following specifications
output -5V,1.5A
mains -15% to 10%
Ripple factor 10%
Find load and line regulations
also consider using miniature CKT breaker,MCB,Fuse,heat sink,MOV.
F should remain constant throught the supply.
Simulate it on multisim.
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i request you to please add if possible the following items
*ckt diag
*componets u r suggesting
*cost of component(INR)
*data sheet/features of component used.

we have to just simulate and submit the report asap.
i feel quite helpless as i have no experience of handling such electronics project. so i will need ur help so that i can learn the techniques and start designing myself.
I will sincerely appreciate if you answer keeping in mind that i am trying to be self dependent.

Added after 1 hours 4 minutes:

the crkt i am considering

This is a schematic of a simple -5VDC 1A regulated power supply...

thanks. I Think that will do.