ACFT WAS PROVIDED VERY POOR RADAR VECTORS TO THE ILS FINAL DURING IFR CONDITIONS. RPTR HAD TO WORK VERY HARD TO SALVAGE THE APCH.

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ATC ISSUED THE CLRNC TO DSND; FROM 4000 FT TO 2800 FT; TOO CLOSE TO SHEBB NDB (LOM). I WAS ONLY APPROX 4 MI FROM SHEBB AT THIS TIME; FLYING ON A VECTOR OF 240 DEGS. THAT VECTOR WAS DIRECTED ALMOST EXACTLY TOWARDS SHEBB. THE LOC HAD NOT BEEN CAPTURED. ATC ISSUED A VECTOR OF 210 DEGS FOR THE INTERCEPT; WHICH I IGNORED. THE ILS COURSE IS 216 DEGS. THIS VECTOR WOULD HAVE MISSED THE ILS. DUE TO THE VECTOR ANGLE BEING TOO CLOSE TO THE FAF AND THE ALT CLRNC BEING TOO LATE; MY AUTOPLT FAILED TO CAPTURE THE APCH. I OVERRODE THE AUTOPLT AND FLEW THE APCH TO MINIMUMS. THE POOR SELECTION OF VECTOR ANGLES; INTERCEPT POINT AND ALT CHANGE POINT ASSIGNED BY ATC; RESULTED IN NO TIME FOR MY AUTOPLT TO CAPTURE THE APCH. THIS ALSO RESULTED IN NO TIME FOR ME TO STABILIZE THE PLANE FOR THE APCH. DURING THE APCH I DIDN'T FLY OUTSIDE OF THE LOC OR GS LIMITS; HOWEVER; DUE TO THE POOR POSITIONING PRIOR TO THE FAF; WHAT SHOULD HAVE BEEN A REASONABLE ILS APCH TO MINIMUMS (WE SAW THE LIGHTS AT 250 AGL) BECAME A VERY DIFFICULT TASK! I ERRED BY ASSUMING ATC KNEW WHAT THEY WERE DOING. I SHOULD HAVE CALLED FOR ABANDONMENT OF THE APCH AND NEW VECTORS PRIOR TO THE FAF.