Thank you++ Skylax for your last comments and corrections.
Herewith some further answer suggestions..
1 ask (the) guide, who will lead you back
2 he was marching on through Phrygia one day?s journey to an inhabited, pleasant and large city
3 they had cattle which they sacrificed to Zeus the preserver
4 if I shall accomplish (the objects) for which I am taking the field, I will lead you back home
5 after this, ...