Orps are all feather and fluff. Try a hybrid table bird such as Ross Cobb/hub bards/colour yields. You rear them slowly, on grass and they will produce beautiful roasting birds in about 10- 14 weeks.
Traditional breed cockerels - Ixworth/Indian Game / light Sussex can also be used but take up to 20 wks. The meat on these, I have found to be a bit more gamey and not as tender.
It can be quite hard to get hold of small numbers of hybrid birds depending one where you are in the country. the chap my way, does min 25.