My advice would be for your to do your own thorough search of the internet and this site to see what has been cuss, discussed and documented previously regarding IFS options. Next you should determine how much money you have to make the modification. Then get out some magazines and see what others have done and what the vendors offer as there are many variations both in configuration and cost.
From there you can then decide which way would fit your plans and then you can ask specific questions as the scope of your request is much too broad for a specific answer.
