@Saucydrip I'm guessing you mean the R5 2600X? The biggest issue with Mini ITX for factor is heat so I would personally avoid going from 65watts to 95watts, especially since it would make only slight differences to performance in the OP's usage.
@Budge414... you can get a used 1070
Good call. Used parts are great value and many PC components come with a minimum 3 year warranty. A GTX 1070 is more than what is required here but it never hurts to front up the cash for an upgrade.
The only problem with current used graphics cards is the fact that many were previously crypto-miners, and the only way to know for sure is by the seller being trustworthy and making mention of it. It's not the end of world but I'd prefer not to have a card that spent it's life running hot and fans constantly spinning.
@summer.sdm If you do want to go for used parts just be sure to request an invoice. I'm unsure how returns work in America but I'm assuming you'll need it to claim warranty. Otherwise you can use the serial number of the product, however this would go from the date of manufacture and that could have been months prior to purchase from the store!