Modify a onestage Harbor Freight 2HP dust collector to a twostage with a Thien baffle. Key takeaways:
You don't have to pick up the motor while you measure.
You don't have to spend a lot of money.
You don't have to build a new dolly.

I also post pictures of things I build on Instagram:   / thesnekkershow  .

This video is not sponsored, but I may earn a small commission if you use one of these links to make a purchase:

Rockler 4” x 2' stretch hose: https://amzn.to/3bDOXsH
Rockler 4” x 4' stretch hose: https://amzn.to/38VGuQ5
4” black corrugated snap coupler: https://amzn.to/3bR03uM
Rockler threaded disconnect fitting: https://amzn.to/3nW9mvu
4” handkeyed hose clamps: https://amzn.to/38Vf6Bv
4” PVC coupler: https://amzn.to/3imTUaV