You've already received good advice, which I endorse, so I'll just add two more thoughts:
First, N., I think you might enjoy
the Pop Sonnets site. I found it so amusing that I bought several copies of the book to give to my nieces and nephews. The author translates 20th- and early 21st-century song lyrics into Shakespearean sonnets, and it's a fun puzzle to see how quickly you can recognize which song is being (Shakes)peare-pressured.
Second, what if your nostalgic narrator were suddenly to find himself indeed transported to a previous age — but as a woman, and/or as a slave or peasant? Finding himself the de facto or actual property of the courtiers with whom he had assumed he'd be "kith and kin" — and/or perhaps being designated a heretic or witch to be executed, to boot — might cure that nostalgia for yesteryear pretty damn quickly.