Be careful with the compressed air. It can drive water into the crankcase so if you don't soon get it started, that water will rust the crank and bearings to the point they're worthless. Only takes a couple of weeks, ask me how I know.
Being low hour, likely your tuneup kit and clutch bearing are unnecessary. Clean the air filter and use the rest. Use the carb as-is - if it doesn't start due to fuel, buy a rebuild kit for $10. Your expense, other than time, then becomes the handle halves and primer bulb. If you can get both handle halves delivered for $60, you're doing well. Based on that, I'd do the repair. I wouldn't spend too much time cleaning until you know you can get it running properly.