Just about the time I decided to run to the hardware store for some bolts, Chris responded to an email I send confirming that there should have been 2 bolts with nyloc nuts - must have lost them
Anyway, a short time later I had the temp sensor all mounted in the new baseplate
The breather was a very tight fit. I tried for about a minute to get it to fit and just about the time I thought I'd have to enlarge the hole it popped in.
Here is the new baseplate all ready to be mounted on the 990