Atari Flashback 4 mod?

Hi Atariage

I found this mod on atarimuseum:
http://atarimuseum.com/fb2hacks/
You have probably all heard about it before, but it allows an atari flashback 2 to play 2600 cartridges.

My first question is:
Is it possible to perform this mod on the flashback 4?

I prefer the 4, since it has rca output, more built in games and wireless controller options.

However, since i am not a modder, i would like to know if someone in here would be willing to mod the console for me, and what would you charge for it?

- Buying a new console on ebay(i have already found a few).
- Mod the console.
- and send it to me(i live in Denmark).

I will of course pay for console, shipping, materials and work hours(through paypal).

P.S. Sorry for my potentially horrendous english, but as i stated before i am danish - so english is not my vernacular.