First start of 351C

Hi guys!
I have about 2years project hitting the marker. Bottom is rust free, painted and tech builded. 351C has new cam, transmission serviced, Brake master cylinder new and Brogeson steering.

Question is, what to do next?! Brakes I just bleeded, but bleeding steering requires engine to run. Runnin the engine means that it needs brake in. If I run engine woth only 2,5-3litres of oil in it will it damage tranny? If I put gear on, and fill tranny will I with first gear on, it need to run on idle. If I run it on idle does it cool and lubricate enough the cam? I understood that it needs to be in 2500-3000 straight from first start? What is the order I should advance?

And I can’t run it in carrage and there is 1meter of snow outside. And blizzard. So ai need to push Cougar out to start the engine. Back in there is bit of icy slope😨