Jim,
Not a problem. Assuming Bottlehead standard, transformer is in back, the top plate has (from left to right at the front) the driver tube, the output tube, the hum pot then the power switch. They are not really lined up of course.
Still from the top, across the back from left to right there is the input RCA jack, the speaker terminals, the power transformer (centered left to right and forward of the other items) and then the IEC connector last on the right.
Of course when you flip it over things are reversed. The OPT is now on the right and forward of the speaker terminals and RCA jack. The PC-2 plate choke is opposite the OPT on the far left. The FC-1 filament choke is dead center at the rear of the chassis. It is directly behind the power transformer.
Somebody check me, I get right and left swapped all too often.