I would like to use a triangular configuration for the auxiliary belt in order to avoid the need for guide pulleys, like this:

I wonder how is the alternator mounted here? There are four holes in a rectangular configuration at the front part of the block exhaust side that seem to be ideal for the engine mount, but wouldn't the alternator foul them? Also, what is the alternator bracket fixed to on the pic? The holes for the belt cover on the front face of the block?