I had a very nice chat with Dave at SMD and he suggest a 610 might be an option or the 730.
I've put the atelier up for sale on here to see if I get any interest - otherwise I suppose I must try FB or eBay ...
I'm going to wait until I've got a definite buyer first as I've neither the space nor the spare cash to fund another machine purchase.
Thanks again for the feedback.
Annie