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The turbopump and aft LOX tank bulkhead in the forward end of the engine compartment.

A feed line runs from the alcohol tank, through the LOX tank, and to the fuel turbopump; that is the upper line exiting the LOX tank bulkhead. The lower line in this photo is the LOX feed line.

The turbopump inlets have a short section of bellows (presumably to help cope with vibration during flight); both bellows sections appear to have some sort of boot over them.