OP, first and foremost it is your money, but a lot of people's suggestions are likely generating from the "You may not know what you're missing, don't want to regret it later" point of view. If you are looking to get an 8x10, you can find many with a LOT more headroom, more balanced tone, and likely more reliability for a little more money than the Acoustic. Ampeg 8x10s are pretty massive and rather common, PLENTY of cats are trying to ditch them because they want to go lighter. This translates to "desperate to get it out syndrome", you could get some really killer deals if you don't mind cosmetic flaws (some peeled-off tolex, maybe a few nicks here and there). Plenty of people make affordable, quality 8x10s for less money as well. A new Peavey 8x10, used Ampeg, used Hartke, or even a used GK Neo would all be very viable options with much better results.
If you absolutely must go Acoustic, I'd recommend getting another 4x10 instead of the 8x10s. YMMV though.
If you absolutely must go Acoustic, I'd recommend getting another 4x10 instead of the 8x10s. YMMV though.