Serkan,
I would be more inclined to pick out the BEST ones rather than collect all, some of which are already superseded by newer cultivars. The quarantine procedures are so draconian in Australia I know getting in new plants will be tough. Here in the US, a lot of us have thrown away older cultivars but we are especially spoiled in having such good selections and active hybridizing.
The bee pollinated ones will be open pollinated not selfed. In fact the anthers and stigmas mature at different times so you often get cross pollination if any other semps are blooming close by.
A couple of the German breeders use elaborate setups like you describe but I find just old pots and beds are all you need. My plants are good-sized in just one growing season.
LIKE YOUR ENTHUSIASM and love your beds.
Kevin
