If the intercooler system is shot completely then yes the front mount kit for the money would be the one to go for rather than replacing for the stock Ford parts
However..............the front mount really only benefits the car with higher bhp i.e pushing 300bhp or if the car is running upgraded turbo, etc otherwise you wont notice the effects of the kit
Another suggestion would be to scour ebay or alike for a crash damaged car or for spare parts being sold ripe for a transplant or similar as this may bring your costs down to replace the chargecooler as well.
Bear in mind that a lot of people sometimes think the intercooler itself isnt working when in fact it could just be the pump that runs the chargecooler system
It may be worth getting Frauds to look at it & then get an independent opinion from a specialist like SCC just to make sure Ford arent trying to bend you over so to speak