Yes, a dog clamp will work with the Stipe oil pump.
The Stipe pump comes machined to direct all oil to the outside of the cylinder block through the 1/8 NPT hole that must be enlarged to 1/4 NPT. The Stipe oil pump comes with machining instructions that will allow it to deliver oil internally like a stock Model A oil pump.
See "2) Oil System Options" in the "Builders Guide" found at
www.modelaengine.com.
The latest "Builders Guide" has 27 March 2021 under the title.