Make sure you run adequate size wiring to the pump.

If the wire run is fairly long - and it will be if you use an oil pressure safety switch - a constant duty relay will be required.
These relays are available at NAPA, just be sure it's listed as continous use.

Check the voltage at the pump.
If your battery reads 12.2V with engine off and the voltage at the pump is 12.0 and above you should be ok.
Better if pump voltage reads 12.2V.

A long run of small wire (IE: 16 gage) may end up as low as 11.2 - 11.4V at the pump.

Mount the relay not too far from the pump, feed it with a fused 10 gage wire, run a short 14 gage wire to the pump.

A lot of guys just connect the wire and call it good if the pump hums, but pump life will be considerably shortened by low voltage regardless of make.

See if the Mr. Gasket pump compares to the good old AutoPulse pump that's been around forever.

They used to be pretty good pumps and probably still are.
These same pumps are used on Piper low wing aircraft and others.
Although they get an 'Official' aircraft sticker on them and the price goes to $125. or so.

You can find these pumps in the online Spruce Specialties aircraft supply onlline catalog so you can compare.