Dragon Quest III SNES Reproduction

Hello everyone!

I recently started making SNES reproductions, so far I've made three all ready, but only simple ones (i.e switching original ROM chips for 29F032 + Adapter).
Now I want to try making a Dragon Quest 3 one, but it's not as simple as my previous ones.
In case you don't know, Dragon Quest 3 uses a SHVC-1J3M-20 board with one ROM ship. The japanese original game is only 4 MB, but the translation patch expands its size to 6 MB making a simple swap impossible.
Any help would be appreciated, this is also my first thread so please be gentle.

Cheers!

 

Buy a japanese Final Fantasy 6, a 29F032 and a 29F016. Read out your finished repro on your pc and see if the romfile is in the right order. If not play around with the mad-1 chip.

 

There's a possibility to use a 74LS139 an wire up multiple eproms.

 

If you don't get much help here NESDev forums has alot of info on the subject.

 

I found this: http://www.nintendoage.com/forum/messageview.cfm?StartRow=1&catid=22&threadid=120396.
Pretty much exactly what i need.