Valley Health is a hospital based IFT EMS organization, which is under Valley Regional Enterprises. They have shifts in Luray, Woodstock, and Front Royal, as well as Winchester off exit 310 on I-81, Harrisonburg being exit 247 or so IIRC . Pay is appropriate for the area, and management treats their employees really well. The equipment and training are also well above average. Plenty of work available, as they've been expanding for some time. There are also plans, within the next year, to run back-up 911 for local fire departments, and possibly regular work in that area if all goes well.
I would go with them full time, and then try to get hired with the local 911 employer PT, or vice versa. PM me if you want more info.
Are you open to fire based EMS? If so, realize that the municipal pay in the Shenandoah Valley is rather low, compared to Northern Virginia. For example, in Front Royal, the fire dept. expects you to provide (buy) your own bunker gear! I've never heard of that before.