abroad i've seen ppl fitting it with a S2000 gauge cluster (smaller in size and will require custom fabrication of that black plastic thingy)... dont think that would be available here...
If someone can fabricate the cluster pod, you can go for a 4-7 inch lcd (if they fit) based setup using either an android tablet (ainol novo aurora 7") or an ultragauge type device but none of this is going to be "cheap".
Other options could be retrofitting a lexus or other cluster... but matching size can be an issue.