You could probably do the plecos if you set the temp to 27C (75?) Then the water is at the top end of the natural range for the pleco and the bottom for the angels. Please not the pleco can live for 20 years, so it is a big commitment.
Barbs can be a gamble with angels. They may go for the long fins.
Barbs can be a gamble with angels. They may go for the long fins.