Difficult to brew? Where did you hear that? It's just the opposite IMO.
Do your partial mash with some pale malt, flaked barley, the dark roasted grains and other additions like chocolate malt, wheat malt, or crystal malt if you like. Combine with a base of light DME, boil with hops, chill, pitch yeast, ferment and enjoy.
Five Gallons US
2 lbs English 2-row Pale
.75 lbs Roasted Barley
.5 lbs Chocolate Malt;
1 lbs Barley Flaked
3 lbs Dry Light Extract
1.25 oz East Kent Goldings (Pellets, 5.00 %AA) boiled 60 min.
.75 oz East Kent Goldings (Pellets, 5.00 %AA) boiled 20 min. Yeast : White Labs WLP004 Irish Stout