Come on Jeff, it's "only" 80 bucks
Given that it has been sitting I would absolutely put in a carb kit. DO get yourself a Seloc's manual.
In many cases you could argue that a service manual is "better" but the Seloc walks your through a carb rebuild where a service manual assumes that you mostly already know what you are doing.
It is worth going that route because the cost to have this rebuilt at a dealer (at least up my way) is 300 bucks - so 80 bucks for a kit and 35 for a manual is "cheap".
You will also want to (minimally) replace the impeller and have a good look at the waterpump seals/gaskets when you do. A "not uncommon" issue with these is the rubber seal in the waterpump cover (where the drive shaft comes through and the water tube connects up) - they tend to split between the hole and the guide tube allowing water to blow out.
I would also grab a new pair of spark plugs - NGK BP8HS-15 gapped at .040" - do not cross ref to a Champion plug, no good on this motor.
Given that it's a 95 model (if you have that part correct) it's starting to get old enough where you could experience a couple of other "common issues" (I own three motors from the group and have worked on a ton over the years).
The original coils develop some spider cracks in the cases - this results in an infrequent miss that gets worse as the cracks get more severe. It's worth taking the coils off and giving them a good wipe down (they get gooky over the years) and inspect them closely. If you notice any sort of cracking on the cases replace them - but not with OEM - Sierra makes a superior coil for these for somewhat less than half the price of OEM.
The second issues that is somewhat common is worn out crank seals - there is a seal at the base of the motor and one up under the flywheel around the crank shaft. It's not that these are flimsy, but by design they do have a limited service life - 15 to 20 years seems to be common.
An oily goopy mess in the lower cowl (may) indicate a bad lower seal (less common) - after you get her running for a bit if it looks like someone has sprayed the powerhead with a light coat of fogging oil or WD-40 that could indicate a bad upper seal (more common issue than the lower seal) - so something to watch for.
But first things first - get the carb sorted out and the impeller and get her fired back up.
These are awesome little motors, perhaps the best 15 horse built by any mfg all time - worth getting it going and using it for many years to come.
