I've been wanting to make this ever since I saw this awesome combination of Abyss and Impulse Gundam. Yes the Gundam's name provided the recipe already.
You just need some modification done to the shoulder armors of Impulse Gundam to connect the Abyss' dual cannon pods to it.
Of course you have to change the colors too!
Where to get the ingredients?
***FORCE IMPULSE IS CURRENTLY OUT OF STOCK ON THE LINK PROVIDED. YOU CAN ALWAYS TRY EBAY!