Hey Troy,
Onefinity offers milling motor mounts with 65 am 80 mm. The Dewalt DWP611 hand trim router has 68 mm so does not fit.
The hand trim routers Makita RT0702C, or better, since with real ER collet (far superior to Makita collet), the Carbide ER-11 Compact Router - Carbide 3D or the MakerMade CNC Router with ER-11 collet, have 65 mm diameter. See here for details. 80 mm is for 80 mm cylindrical spindle like Mechatron HFS-8022 (liquid-cooled) or HFSAC-8022 (air-cooled)
Welcome to the forum!