3D Printer Monoprice Maker Ultimate III/Wanhao D6 - $190 (Ballenger Creek)

This was my first and only 3D printer, I've had it for nearly a decade at this point and it has served me well.
I've done pretty extensive modding and upgrades for it over the years but it has gotten to the point that I just don't have the time or inclination to deal with tuning it up again.
Mechanically, everything is sound.
However, the settings (either on the hardware itself or in my slicer settings) are not quite right and prints just aren't coming out as nice as they used to.
I've included some pictures of example prints in PETG so that you can see the quality it is capable of! Upgrades: Microswiss all metal hotend Magnetic bed with custom spring steel build plate Hotend fan upgrade (blower style) Hotend silicone sock Noctua heat break fan BondTech Direct drive extruder X and Y axis dampers Raspberry Pi control for octoprint and camera for monitoring, using buck converter to supply power off the PSU Vibration isolation feet PSU fan shroud Mainboard fan and mount (yes it's missing a blade, no idea how but it actually fixed the balance of it) Grille cut out of the bottom panel to allow airflow to the mainboard Adjustable Belt tensioners Rail grease holder/apply-ing things What is included: Printer/Powercord (duh) Original box it came in All stock hardware for mounting back spool Stock part fan Stock hotend assembly Some extra nozzles Sock extruder hardware Custom rear mount spool holder with ball bearings Mold to create new hot-end socks from hightemp silicone Additional damper mount for Z-axis Spring textured PEI build plate A BRAND NEW GLUE STICK! Poker thing, scraper, sdcard adapter and allen key Brand new BLTouch probe kit, never opened! Raspberry Pi 3B, with 32 Gb SD sdcard Raspberry Pi camera module and extra long ribbon cable