Back in 2014, former GCA poster Jim Colton had this same thought.
The link is to Jim's blog, which highlights his Bandon composite. While it doesn't exactly end at a clubhouse, it is a full routing of 18 holes.
http://www.wegoblogger31.com/2014/03/food-for-thought-would-this-be-best-18.html
I could play this routing everyday for the rest of my life.
Would be pretty high up on the list of best finishing holes on the planet!
The routing could be made more fluid if the second hole was to cut over onto 15 at PD (remove 7 at OM). Then play the routing as pictured. Play 14 at PD as #17. Then play 10 at OM as #18 to finish at the same place. 5 at OM could be used as a 19th hole.
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Edit: Or you could start and end near the PD clubhouse so you could finish the day at the Punchbowl.
1: 8 at BD Par 4 342/359/385
2: 4 at BD Par 4 362/410/443
3: 5 at BD Par 4 400/428/445
4: 6 at BD Par 3 153/161/217
5: 11 at PD Par 3 114/131/148
6: 12 at PD Par 5 476/507/529 (or Par 4 449/476/507)
7: 13 at PD Par 4 371/390/444
8: 14 at PD Par 3 119/128/145
(Yes, that is a 225 yard walk from my 8 to 9, but if I could play this routing everyday, I would put up with that walk.)9: 10 at OM Par 4 383/440/465
10: 6 at OM Par 5 467/520/555
11: 15 at PD Par 5 492/504/539
12: 16 at PD Par 4 301/338/338
13: 2 at PD Par 4 335/335/368
14: 3 at PD Par 5 476/476/499
15: 4 at PD Par 4 410/449/463
16: 5 at PD Par 3 163/181/199
17: 6 at PD Par 4 288/288/316
18: 7 at PD Par 4 377/436/464
Total: Par 72 6029/6481/6962 (or Par 71 6002/6450/6940)