But not statutorily exclude any who work >1000 hours for a computation period.
So if you are wanting to cover hourly employees who are credited with 2080 hours (aka full-time) while excluding employees credited with fewer hours (aka part-time), you would have to find some other legitimate non hours related business classification for which to exclude, assuming you can pass coverage as you say without those >1000<2080 employees.
If all such employees worked in the same location, department, etc. exclusive of hourly employees you want/need to cover, that might work, but I would tread lightly as the exclusion of part-time employees who work more than 1000 hours is a specific NO-NO in the eyes of the IRS.