hi guys i really need some help so here it goes

my misses has got a fiesta st 05 and she ran it low on oil and water so it went bang, so i brought her and second hand engine from a bloke called shane who owns a company called speed & motion. he said to me that the engine has done 36k and that he had put acl race big end bearings because he was anal. so after driving a 4hour round trip we got the engine home and starting putting it in, we got everything in and tried to crank it over and we couldnt get oil pressure so we drop the sump and what did we find loads of metal bits in it. the oil pump was knacked and to top it off he had put conrod cap 2 3 the wrong way round, i'm no mechainc but you no if there the wrong way round because the dont line up, but this bloke shane should no what he is doing because he is meant to be doing this for a living, put if anyone nows a 2.0 duratec engine you cant get them the wrong way round because they are cracked for that rod. so him doing this meant that it scored the crank. so i phone him up and he was like ill send a new oil pump and bearing set, so after waiting nearly 2 months he sent me a second oil pump and only big end bearing,
right get back to the problem, we builld the engine back up got a different crank and all new bearings and pump, put it back in the car and crank it over to we got oil pressure, but when coming to start it, it wont start
any ideas as im stuck!! ive tried the leads and that. i've done a conpresson test on it and there are between 100 and 125 is that right?

thank you for your time