Conan,
You've really got two choices:
1) Use a regular SACD player and connect it's analog outputs to your G68 / 861 with IA45.
or
2) Get/Mod a player from DVD upgrades. See:
http://www.dvdupgrades.ch/150019/Modification/SPDIF/Output/Six_channel_S_P_DIF_output_board.html Option 2 will likely result in better sound by avoiding DA-AD. Those who've tried both options seem to agree.
Personally I've not found SACD players that convert DSD to PCM before conversion (& there are plenty of expensive ones that do) to necessarily sound inferior - and this is directly into analog amps.
This, of course, begs the question 'why not start with PCM?'...Which is a very good question.
Bottom line is that if you experience something special with direct DSD conversion then go with a player that does not convert to PCM - & certainly don't connect to a Meridian processor. Otherwise go with options 1 or 2 (better) above and enjoy - IMO - the more substantial/real benefits of MRC etc.
Paul.