I got a Specialized Allez Elite about a month ago, as in insurance replacement for my old, loved, stolen Kinesis tourer. They’re about £1000 new, mostly Shimano 105 bits, carbon forks and seatstays. I’m amazed how comfy it is for long rides, feels loads easier than the bike it replaced. Fast, too. Certainly faster than I can make it go. The cheaper one (£750?) (Sport?) also looks good, and can take rack and guards I think.
2009 Allez have been getting kind-of-OK-but-not-thrilling reviews, so they might be cheap if you negotiate?
Above advice re. what to take is all good. I’m certainly not a proper roadie, but I got some road shoes (cheapest Shimano) and pedals (Look Keo Classic) and they’re awesome compared to the SPDs I had on the old tourer, feel loads more stable and comfier for long rides due to stiffness, I guess.
Lycra makes me faster, simply through embarrassment.