Replace sand filter and motor with a new quad de filter

[vinjvinj]

Here is the filter I saw mentioned in other forums:

http://www.pentairpool.com/products/...ilters-139.htm

Here are the images of my pool filter and motor:






Questions:

1. What filter + de should I buy
2. What motor should I buy? I currently have a booster motor which has never worked and would want to remove it when I install the new filter. Are the new motors which can run at dfifferent rpm's and have built in timers and auto shut offs worth it. They seem rather cool.
3. Where can I figure out what to buy and how to connect everything together. Are there techs online who can help for a fee?

Regards