Making t5 retro from fixture

[GOSKN5]

I have a t5 ho fixture that won't quite fit in my canopy. Any reason I cannot gut it and use the internals for a retro fit type setup? Anyone ever done this, any pics?

Would I be better off buying new end caps etc? Thanks for the help

 

[Reefmon]

I'm pretty sure you can guy it but let's see what the professionals have to say.