Hi Brian,
Yes, you can configure 1262 as Universal Workgroup bridge where it will associate to any cisco or non-cisco root AP. You can only connect one wired client behind universal WGB.
You just need to configure "station-role workgroup-bridge universal <wired_client_MAC>" under radio interface of WGB. (1262)
Something similar should work for your 1262, if you want it in 5GHz, otherwise configure radio 0 interface for WGB
hostname WGB
!
dot11 ssid <SSID-NAME>
authentication open
authentication key-management wpa version 2
wpa-psk ascii <PASSWORD>
!
interface Dot11Radio1
encryption mode ciphers aes-ccm
station-role workgroup-bridge universal 068d.098a.d422 <- Ur wired MAC
ssid <SSID-NAME>
bridge-group 1
!
interface GigabitEthernet0
bridge-group 1
NB: I haven't tested this, so you have to test & confirm. If WPA2/AES is not supported then you may need to choose suitable security protocol & encryption mechanism.
HTH
Rasika
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