You can operate at the 25 or 10 MSA and just intercept the outbound track inbound. Is there a reason why you are conducting holding. If its traffic related I would suggest you should stick to the inbound track so that everyone knows what you're doing.....including yourself!
As you know the regs simply state that you should only be within 30 degrees of the inbound ( which could actually be the outbound for 90% of approaches ) but why not strive for perfection and nail the inbound as it also gives you some indication of what the wind is doing before you commence the approach.
GUARD
