Hey Lordwast, the morning coat, vintage football pants, and German gaiters/spats can all be found on EBay. You'll need some brass jump rings to make make the persian 3 in 1 chain on his coat, I used 10 x 1.5 mm rings.
The vintage concho belt can be found anywhere really, etsy and eBay are your best bets. I got mine from etsy. I recently bought another oneon etsy with Paul's exact design. They mostly come in silvertone.
I bought my fishnet shirt from eBay, surprisingly hard to find elsewhere.
Pick up some small brass coloured curb chain too. For the brooches.
Search etsy for his 'eye ring'. You should find something similar, mine came from China. I used a brass cuff blank for his right hand bracelet and patina'd it with boiled eggs. (same with the chain). He also wears a bike Chain bracelet and what looks like leather lacing on his wrist. Left wrist is hard as there's no solid references.
I bought some equestrian half chaps for his shins although I dont know what they really are. Boots, well I'm still trying to find some decent used ones.
The leather pieces on the coat I took from a women's leatherjacket I bought from eBay. Try to find a jacket or two that match the pieces on his coat.
I made my fetish belt from an old leather belt and 1" O rings. Refer to Bdudes post earlier. Note, The strap hanging down uses slightly larger rings.
Last thing is the vintage red and blue stripe suspenders, they're not obvious, but they're there.
I'm still in the process of redoing my costume, when it's done I promise I'll post photos. Otherwise I hope this helps.