I'll just repeat what I said earlier
Even with normal tables, you can't just automatically create whatever the missing index DMVs suggest, unless you want a huge amount of redundant and unnecessary indexes. For temp tables you just need the additional step of saving the exec plan and then checking the missing index info from there (or analysing the plan if the info is not there) instead of the missing index DMVs.
In other words, any form of automatic index creation, automatic index recommendations without testing, is a very bad idea and is more likely to lead to reduced performance overall.
Gail Shaw
Microsoft Certified Master: SQL Server, MVP, M.Sc (Comp Sci)
SQL In The Wild: Discussions on DB performance with occasional diversions into recoverability