Woodpecker makes a large triangle - “MFT layout and assembly square.” Not sure if you use chisels bit the Stanley Sweethearts are a good value... I have the 8 piece set? That’s $200 so far. You have $800 left. Down payment on a DF700...? You could probably spend an additional $200 on supplies sandpaper, finishes, primers? Add a cordless tool to the fe-stable. 
