You can get the 1701 from New St, arr Lime St 1844 (£11.50p single), or New Street 1736, arr Lime Street 1918 (£12.00 single).
The second one'd still be in time, if you got a taxi to the ground (£6 approx). If you got the first one, it's a 7/8 minute walk to the bus station, where the 17a, 17b, 17c or 26 bus goes past the ground (£1 approx).