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I'm trying to find a way to engineer FX forward and swap curves. I want to be able to use this info for execution benchmarking so this will be stored on a tick by tick basis.While there is Reuters contributed data, I don't know how close actual dealable rates these are. The other challenge is I don't know for instance any kind of market impact changes for large forward/swap trades (e.g. no depth of book).Is there a way I could engineer the forward curves in the say the majors using interest rate futures or something else that would achieve the following:(1) be accurate to a dealable/market price?(2) that would give an indication of potential depth of book at that price?Can anyone help? My shop isn't a bank but a B/D with a primarily equities focus....I'm the only FX guy LOLAnother way to ask...What instruments would a forward trader ACTUALLY use to hedge their risk in each of the major currencies?

Because basis swaps have blown out and credit risk/ counterparty funding is such a big issue, you cant really use money market instruments anymore to replicate forward rates.Traders now manage fx swaps as per inventory management and mainly bookrun their positions.If you have reuters, use a broker feed and that would be accurate enough.Most G10 forward rates are good up to 100- 200usd eqv. notional for normal liquid crosses for the inside spread.Not sure if that helps - what size are you looking to deal in?