Na Horuk, thanks, good hints, I've just ordered my triggers
Location can be quite problematic, here in Hungary renting equipment is not as straightforward, especially not for Pentax. Here, Pentax is not treated as a serious brand.
Yep, the screwdrive makes me scared sometimes too, I might not bring the 50mm to a church...
That's why I am considering the 50-135.
And the high demands against the low budget is one thing that I'm afraid of.
I think, I try to find a photog, who let me assist him (hard here), and practice, practice, and practice. Please, if you have more advises, let me know them.
Cheers