Ersatz FJ don't quite count as "elite", but you can build some nice lists with them. For 1500 and similar to what you've done, I'd go:
German Ersatz Fallschirmjager
Infantry Company, from Bridge by Bridge, page 25
Compulsory Fallschirmjager Company HQ (Ersatz Fallschirmjager) (p.26) - CinC SMG, 2iC SMG (40 pts)
- Upgrade 2iC SMG to 2iC Panzerfaust SMG (10 pts)
- 3x Panzerschrek (75 pts)
- 8cm GW42 (Stummelwerfer) mortar (20 pts)
Compulsory Fallschirmjager Platoon (Ersatz Fallschirmjager) (p.26) - Command Panzerfaust SMG, 9x Rifle/MG (215 pts)
Compulsory Fallschirmjager Platoon (Ersatz Fallschirmjager) (p.26) - Command Panzerfaust SMG, 9x Rifle/MG (215 pts)
Fallschirmjager Mortar Platoon (Ersatz Fallschirmjager) (p.27) - Command SMG, Observer Rifle, 2x 8cm GW42 (Stummelwerfer) mortar (55 pts)
Fallschirmjager Anti-tank Platoon (Ersatz Fallschirmjager) (p.29) - Command SMG, 4x 7.5cm PaK40 gun (180 pts)
Fallschirmjager Assault Gun Platoon (Ersatz Fallschirmjager) (p.30) - Command StuG G, 4x StuG G (545 pts)
Fallschirmjager Artillery Battery (Ersatz Fallschirmjager) (p.31) - Command SMG, Staff, Observer Rifle, 3x 10.5cm leFH18 howitzer (140 pts)
1495 Points, 6 Platoons
You combat attach the single 8cm Mortar in the HQ to the 1-section Mortar platoon: you now how three weapons for bombarding or smoke, so no need to re-roll hits. The five FV StuGs are a great unit, but the three CT Panthers are also very good, and better as a dedicated tank-killing option.