Any laptop modders who can help with E6320 Dell (see below)

Hi to all those laptop modders who can hopefully help me with my small project..

Please understand that this is a rather long thread, but I am disabled so very limited to funds as well as mobility, although I can at steady pace get my hands dirty (so to speak).

My Laptop..
I have a (although very old) extremely robust DELL E6320 laptop which has been my old faithful for many many years but only has the inbuilt HD3000 graphics card.

Additional info…
I have managed to install Windows 11 onto this laptop with some help from friends and it runs pretty comfortably, and is also running Direct X 12 although it sometimes says it’s DX11. So it could be DX11. Regardless Fusion 360 prefers to run on Direct X 11.

My Proposed Mod Project…
So I want to find a way so I can connect an External Graphics card (that I will build into a small enclosure), which can then be powered externally but make my laptop recognise that Graphics card and allow me to use that as an when I want to run a few designs etc.

***Before anyone criticises- I am very much disabled and cannot keep lugging around a Desktop PC…which is why I wish to mod my laptop instead, and use this Graphics card and my laptop since it will weight a lot less.

I have tried looking at several ways but I am unsure if they will work, but there are a lot of bright people obviously I am not one of those though.

Obviously my external graphics card will be used to run (NON Gaming software) I’m more of a design type person than a gamer.. Fusion 360 is one example.

However I would like to know if anyone can assist me, by somehow utilising one of the spare ports available on the motherboard(internal/External) to somehow convert to PCI-E 16X, which the External Graphics Card (that I already own) will be connected to via a PCI-E 16X adapter.

It is a real challenge

Thank you to all that got down to the end of this request.

Note: Finally be advised this is not the only forum that I am sending this to, so if you are a member of others you might come across the same request.