Well, after all that I picked up an Orange Crush 15R.
It was an offer at Dolphin Music for £80 and they didn't have the DA5 in stock, so I tried this and it seems fine. 8" speaker which is pretty decent - the bass response seems OK.
Realistically, I'm never going to get my stage set up replicated in a practice amp, but this sounds nice and was cheap, so it all seems like a pretty decent deal.