Firstly 5 way people are going to be playing pretty honestly so I think he only makes this with value and some strong FD's. I've given him 44,88,99, 76cc, A2cc-A7cc, A10cc,AJcc, JTcc+ while discounting 10s+,AQo+,KQs as I think he can conceivably 3 bet all of these pre. I've included some hands like J10cc, and a few other broadway suited combinations with a BD and altogether I have a RR range of about 3% which is tight though I don't expect a reg to do this light at such a stack depth. You can fiddle with ranges which will alter things a little but in my analysis we have 35% equity against his range and we need about 33% to call so you could conceivably call flop but you will fold a lot of turns and rivers to a barrely reg OOP so I don't think it's a big mistake to exploitably fold this early and wait for a better spot.