I put a pump head on my ryobi inflator, it’s pretty great
Oddly enough it works. Skills with Phil on YouTube does a great job showing how to turn the pump sprayer into an inflator. the tube that you use to inflate it, fits perfectly into a valve when the core is removed.
Is a small compressor that puts out 110 PSI enough? Or do I need a higher PSI to seat tough tires?
That will work perfect. I upgraded from the garden pump to a ridgid pancake compressor from Home Depot. Figured it would be useful for other things(kids pool toys, car tires, etc). Always nice to blast dirt and junk from headset, drivetrain.
Before buying a compressor, try with just your pump. You may be able to seat tires with just that (although depends on the tire/rim combo, and you may have to resort to some tricks of the trade like others have mentioned).
But worth a try. FWIW I have only a pump, and can get tires on all my bikes to seat OK (gravel, MTB and fatbike). I don’t do road tubeless anymore as I only ride my road bike a few weeks per year, so not worth it.
That will be plenty.
It’s more about volume than PSI. I have a small battery operated cheap compressor from Ryobi and it’s a simple task for it to seat any tubeless tire!