It's up to Clive how he runs his business .. and how much work he can take on, or wants to take on .. if he doesn't want to publicise prices that's up to him.
Frankly, with the feedback he gets, it sounds like he gets enough work to keep him going and enough through LZ to offer 'us' cheaper parts occasionally .. and long may that continue!
Personally I want some bits off him, like the -2" front turrets, but can't afford them even at knock-down prices, so I'm waiting till I can .. then I'll contact him, it's a no-brainer. I'd mostly rather wait a bit and buy good stuff than really skint myself and buy cheap ****e ..