SBP disc brake conversion question

I have a 69 Barracuda with 10” drum brakes which are SBP. I would like to do a disc brake conversion but keep the SBP, without breaking the bank in the process. Has anyone seen a SBP disc brake conversion available?
If I go to LBP, then I’ll probably want to change the rears to match, then of course I’ll also need to get a set of LBP wheels. Trying to avoid all that if possible.
Any suggestions would be welcome
Thanks