NVME Storage Solution

Looking to make an eGPU system from an old laptop I had lying around that I don’t use much. No Thunderbolt connection, so I’d be using a NVME slot for the GPU. Fortunately, my laptop has an extra slot and I have one left over. Question is, I have a few more NVME SSD’s lying around, and I would like to use them in this setup as well. Is there a way to serviceably turn the one NVME slot into multiple? My initial idea was to connect a GPU dock to the NVME and chain it with a PCI-e to NVME converter (the kind that has multiple NVME slots, so i can slot in more than 1 SSD). I am not sure if such a system would even work, and if it did, then if it loses too much read speed between the connections to be viable. I need the laptop to be still for the most part, so mobility would not be an issue. Would like a pointer from someone who may have thought of this or tried before.