Homebrew PCBs

Hello, the smallparts source is great, 6.3$ the part.
For me, the problem getting to a pcb frabicant is a litt  le problem
for distances. I think, that i buy a starter package from MegaUK
or from Bungard. I don�t know, if the chemical is allowed to be
shipped over air. If there is interest, i can divide the chemical
in 6 or 7 parts in order that don�t everyone needs to buy a starter
kit. The price is 850 Euro div 6 (7)+ shipping.
Similar thing can be made for solder/photo mask.
As info, i plan to use PP boxes inside a larger heated water (???)
tray. This water is circulated using a pump. The tray laying 
above a central rod, that makes all the liquid instable, and a
rc servo drives the tray in order to oscillate over the rod.
All this makes the heating and moving very cheap. This system
works only for infrequent usage where the chemicals after using it
are reposted inside it�s bottles.

For the thp station, i currently missing one information, probably
patric know it�s. Using nuggets, that goes down in the liquid,
how the electrical connection is made. I heared professional
manufacture uses titanum hulls, but there exist others, that don�t 
use it. Can you explain it please ?

Regards
chris