Its a nice idea and they are attractive units that I see all the time, but I just couldn't see myself buying either. They'd stand out like a sore thumb with my otherwise 80s and 90s loco-hauled stock. Modern units just dont do anything for me I'm afraid. The cost of a 5 coach Class 180 would also be off-putting for something that is anything less than a must-have for my layout.
good luck with it though!