This should work. Power supplies are universal for all SE, SE SuperDrive/FDHD, and SE/30 analog boards, as are CRT connectors. The two brands of power supply for SEs (Astec and Sony) are interchangeable as well. Sonys are consistently more reliable.
You have to worry about CRT connector types when you're dealing with Classics, which use two types of CRT connector. However, all Macs in the SE line shared the same display.
The only possible significant difference between logic boards is the fan assembly. Early SE boards used the "rat cage" or "squirrel cage" fan, which was noisy and could cause screen interference. Most SE series machines have the blade fan, and since Apple offered a free replacement for those with the earlier fan, it's rare to find the old-style boards with the less desirable fans out there. In general, the only SEs with these old fans are the ones made in 1987 (unless an old analog board was used as a replacement in a 1988-1991 SE series computer).
You have to worry about CRT connector types when you're dealing with Classics, which use two types of CRT connector. However, all Macs in the SE line shared the same display.
The only possible significant difference between logic boards is the fan assembly. Early SE boards used the "rat cage" or "squirrel cage" fan, which was noisy and could cause screen interference. Most SE series machines have the blade fan, and since Apple offered a free replacement for those with the earlier fan, it's rare to find the old-style boards with the less desirable fans out there. In general, the only SEs with these old fans are the ones made in 1987 (unless an old analog board was used as a replacement in a 1988-1991 SE series computer).