I don't know where you're from but I have a cage like this one and my 2 girlies absolutely love it and there is TONES of space for all kinds of clutter and playthings
this is the link to the cage. http://www.amazon.com/gp/product/B000QFMYWQ/ref=s9_psimh_gw_p199_d3_i1?pf_rd_m=ATVPDKIKX0DER&pf_rd_s=desktop-1&pf_rd_r=00Y715N7360DYDR0QH9B&pf_rd_t=36701&pf_rd_p=2079475242&pf_rd_i=desktop hopefully the link works for you. Whos wheels have always been plastic crap? I use happychilla wheels. the new upgraded versions. They are amazing. and only $54 for the right size and they are metal. Also on the cage if you read the comments some people said the packaging is terrible but mine came in great. Went together easy and they were saying that it isnt the right bar size for chinchillas, but I think its perfect unless you plan on having kits. Oh and its on sale for $130 now