How to mount E3D extruder

Hi all!
I just bought a 3D printer to modify. I was looking at the motherboard, which is quite strange, but I think I will replace it with a mks 1.4. On this board there is marlin firmware btw, so I think there will be no issues.
The only problem are the extruders, I attach the image. I would like to mount 2 e3d, because this is a dual extruder printer, but I don’t know how to mount them. Maybe you can help me out! Thanks a lot!

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Above the link, the image it’s too large

I also thought about mounting an e3d chimera+, so I can still have the dual extruders with less pain