Thanks in advance for any advice..

This weekend i'm purchasing a used bike and i'm looking at three options:

1. 2015 TMR01, ultegra build with dura-ace crank, random Chinese carbon wheels - $3k
the good: i have always lusted after this bike.
the bad: i think im over-paying. random wheels.

2. 2019 SystemSix, stock ultegra build - $2100
the good: it's almost brand new. appears to have a good name/reputation
the bad: nothing "bad" per se

3. 2016 SuperSix, 105 build with Zipp404 wheels - $1800
the good: seems a good value; valuable wheels
the bad: doesn't excite me like choice 1.

My goals: to ride mostly on the weekends. To improve cycling fitness. Mostly flat Florida roads.