Ulifac mounting internally in CPC 464

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I recently aquired my first CPC, a 464, bought it on Ebay as "not tested" but it looked super clean, hardly any wear, bright coloured buttons. Guess the seller did not have the correct cables, but it just worked. Only the tape unit is having issues.
On advice I read here I got a Ulifac, and that expansion is amazing. It basically makes it a 6128 with a lot of RAM and USB disk image loading, serial interfaces and more.
For the video out I made a small mod: I desoldered resistor 134 and 136 on one side, basically disabling the luminance, and soldered a 150Ω resistor between the center pin of the DIN6 and the 5V rail next to the socket.
I found a DIN 6 to SCART cable at good will, and I modded a few pins to make it match the CPC pinout.
While doing that I found that my CPC has a short board, with a double row of solder islands under the edge connector. My idea now is to either solder a 2x25 female pin connector to it, or a scsi cable, so I can put the ULIFAC next to the main board inside the CPC.

By question is: has anybody tried to do the same with the Ulifac or its predecessor, and what are your recommendations in how to implement it?

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I just gave it a try and it works great. So I found a 50 pin SCSI cable, cut it in half, and soldered it to the empty holes on the main PCB. I put in on the bottom, so it does not hurt the looks too much. I only might need to extend the reset switch on the Ulifac and 3D print a button that fits non destructively through the grill in the back.

[dodogildo]

You better remember and don't connect another cartridge to the edge connector eventually 

[retro space]

You better remember and don't connect another cartridge to the edge connector eventually

Do things explode then, or will you just enter a software glitchfest?