Wish you all the best! It goes better with water cooling. If you want to use DIY air cooling, you can only use the original heatsink.
NVIDIA Tesla V100 16GB GPU SXM2 + GPU SXM2 To PCIE Adapter Card + Heatsink LOT
SXM2 To PCIE Adapter Board Supports Nvidia Tesla P100 V100 16GB 32GB w/bracket
SXM2 To PCIE Adapter Board Supports Nvidia Tesla P100 V100 16GB 32GB
NVIDIA Tesla V100 16GB GPU SXM2 +PCIE Adapter PCIe 3.0x16 Accelerator Card kit
ADT-Link M.2 NGFF NVMe Key M Extender Cable to PCIE x16 Graphics Card Riser Adapter 16x PCI-e PCI-Express for M2 2230 2242 2260 2280 (25cm)