Any Electricians out there? Air comp. question

I just got a Champion 5 hp compressor. It is magnetic start with unloaders. It has a BALDOR L1430T motor. The motor plate reads as follows:
HP 5
Volts 230
Amps 20.6
RPM 1725
Frame 184T HZ 60 PH 1
Ser. F 1.15 Code H Des L Class F (might be P)
Nema Nom. Eff.84% P.F. 94%
Rating 40C AMB-Cont
Usable at 208V 22.7A
My garage has a 30 amp 2 pole breaker with a 5' 10 or 8 gauge cord hooked to a 30 amp dryer socket. My buzz box has the matching plug on it.
The Magnetic starter has a start stop button on it.
My plan is to try and use another 30 amp breaker if possible. I am at work in Kuwait so I'm unsure if my panel has room for it. Run to a 30 amp disconnect with 10 gauge THHN/THWN wire. Then a 3' whip to compressor if circuit breaker panel has room. If it doesn't I will probably get a 30 amp 230 volt socket, plug and box and go plug in with it.
Will the 30 amp stuff/ 10 gauge wire handle it? If the plate amp listing is FLA, 20.6 X 1.15 = 23.69 amps or 22.7 X 1.15 = 25.31 it should right? The unknown is start up amps of the motor, which is not continuous and might not trip 30 amp breakers.
The compressor is going to sit right in front of breaker panel so by code I could call the breaker my disconnect switch couldn't I? I still think I will spend the money and get a dedicated fused switch.
So what I need here is an expert opinion on how to do this properly.
Thanks in advance Mike