1956 Chevy Question - 350 Small Block Conversion

Does anyone have any advice on installing a 350 small block in a '56 Chevy
Bel-Air?  Specifically I was wondering what I would need as far as motor and
transmission mounts.  Is it best to use front mounts or side mounts?  What
is required as far as a cross member, etc?

Any advice, recommendations, or pointers/links to products appreciated.
Thanks.

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