RFID Tag Application

I wish to use RFID technology to identify tooling in a production environment. In order to avoid material contact this tag must be inside the tooling. I have already successfully tested a Rafsec Gen2 tag by rolling it up and putting it in a hole 80mm long x 5mm diameter. But this is not suitable as it does not meet our temperature resistance requirements. The main issues are:

1. Temperature resistance: During a heat treatment cycle the tooling (and the RFID tag) will rise to approximately 130°C (for 2hours, at most once per day).
2. Physical Size: While it is possible to place the tag in a cylindrical hole 80mm x 5mm diameter, it would be preferable to have a tag that would fit in a space 10mm deep x 14mm diameter. The tag would then be approx 30mm deep in the acetal polymer tool, which it will need to transmit through.
3. Read Range: A range of up to 2 metres is ideal. However a range of 50mm would be acceptable.
4. Cost / Quantity: Typically require a once off quantity of approx 15,000 tags. My priority is finding a tag that works rather than a low cost consumable.

Is it possible to get such a small tag with temperature resistance?

Does anybody have any advice?