Hi. Inexperienced do it yourself-er. I have demo'd, sheetrock/spackled. I am ready to hang cabinets. I have 39 inch cabinets. I have 8 foot ceilings. If I start the bottom of the cabinet 54 inches from the floor, it will give me 3 inches from the top of the cabinet to the ceiling. I have from what I can tell, 3 inches to nail in molding. There is single beam molding, which lays flat on top of the cabinet. Then another piece of molding which goes vertically on the single beam. Then the final 1/4 piece of crown molding which goes into the vertical molding. I do not see how its possible to nail in all 3 pieces, with only 3 inches of space. I can put a wood block on top of cabinet (to use for filler and crown) but how would I secure the wood block.

I'm installing my one and only electrical outlet in a very small bathroom. I plan on putting a shelf above the pedestal sink, and I'm wondering if the outlet should be placed above or below this shelf. My options are very limited, please take a look at the pics and let me know what you think. Thanks for your help.