yeh hes an authentic planet warranty centre however he wants me to send him $50 over western union with no buyer protection before he'll send the parts and i trust the posties about as far as i could **** them out. so doesnt seem like the safest bet, iv actually been talking to Nick T at planet (amazing guy, really helpful!) and hes managed to find the caps and inserts so all i need to find is a M4 threaded 1/8 hose barb, which is proving a little tricky (stupid imperial system) but if all else fails im sure i can get one fabricated somewhere. thanks anyway Nitro!