If this is the last bolt to go in and the only part left then undo everything and START with is bolt. Leave everything slack until reassembled and final tighten with weight back on the wheel. (Must admit its not a job I have done).
Good - Fast - Cheap: Pick any two.
E23 735i; E30 318i; E32 735iL (X 2 - 1 White and 1 Light Blue); E34 535i; E38 735iL; R50 Cooper; R55 Cooper Clubman.
E21 318i; E32 735iL; E34 535i; E38 730iL; E53 4.4i