thanks for the replies. as far as buying one, i do intend to get a large format cutter (1200mm) but thought if i can rent first i can get to try them out. that's why i was hoping to rent a sigma as i've never used one so when i do eventually get one i'll have some first hand experience of both rubi and sigma. it's quite a big expense £500+ so want to get it right. will probably get the tx1200 but heard so much about sigmas i'd love to give one a try.
and tiles on this job are 900x600 cam so not quite 1000mm but almost. they're certainly large format for me . only ever done 1200x600 once before and this size just a few times. got 900x600x20 marble here too, wish it was all stone i'm already kitted up for that, but most of it is the big porcelains. i suppose i can cut the porcs on my wet cutter, but that's a bit slow.
and thanks for the offer bri, but this job doesn't start for another 2 weeks, and may yet get put back further. problems with the plasterers and steel there holding everything up. havent heard that combo before. normally plumbers and sparks dragging their feet.