Here is a photo as I remember it from Gary O'Brien's Goosemoor Lane site link:
https://www.goosemoor-lane.com/masonchurch.htm
Information from British History Online site re Station Road Methodist Church:
Station Road, Erdington chapel was opened as a school-chapel by the Wesleyans in 1869. As extended in 1885 (
fn. 13) it provided sittings for 400. (
fn. 14) In 1902 a second chapel was opened, to replace the old one, (
fn. 15) and the former building was converted for Sunday school use. The new chapel, built of brick, was designed by Messrs. E. and J. Harper in the 'early English Gothic' style. (
fn. 16) It was altered in 1922 and extended in 1931, (
fn. 17) and in 1940 provided sittings for 610 in the main hall. There were then eight other rooms, of which three were built as school halls. (
fn. 18) The Sunday evening congregation in 1892 was 137, (
fn. 19) and church membership in 1932 244. (
fn. 20)
Ewan and James Harper were Architects and built several buildings in Birmingham. Ewan Harper designed the Methodist Central Hall on Corporation Street
You can look them up online and you may be able to find drawings for the church they designed on Station Road.