Theoretically this should run the 80 ohms but not to the absolute fullest… you will get sound out of them to a good degree just not blaring and the bass and overall clarity may take a bit of a hit as the 887 anymore isn’t all that good in all honesty.
If all else fails see about maybe getting a cheap FIIO E10k as you can find these around $40-$70 and will run up to 250 ohms no problem. Plus it’s rather compact so it won’t take up a lot of space… Alternative to that would just buy like buying a Liquid Spark, Jds Atom, Schiit Magni 3+ and connecting them directly to the computer to use the computer as your dac… these would provide the most power but these will be more expensive less you buy them used at $70
To help you shop, provided your in the usa, you can use multiple outlets look at Head-fi, Amazon, Ebay, Buy/Sell and Looking for Thread here on the site, https://www.reddit.com/r/AVexchange/ here on reddit, USA Audio Mart, and lastly https://www.hifishark.com/ can scour multiple sites for a deal by typing in the item name in the search bar. 3rd party you will save a ton of money. just always use Paypal with an invoice so your protected financially and make sure they have photos showing the condition of the item and a little card showing the date and their username which proves ownership. Gives you security during sales