Weber Intake for 351W

[133bus]

Hi all,I've picked up a set of 48IDAs on a MOON SBC intake,but need an intake for a 351w...I have two ads on here,one is the MOON intake for sale and the other is a want ad for a 351w intake...I know Pierce sell a very nice one but I have no problem saying my car is a restricted budget built...other wise I would have no Cobra at all...that being said I would buy new if I have to but would like to trade the MOON for a 351w intake or buy a used one.
I have writen and called several makers of the Injection type intakes that use the 48IDA bolt pattern and they have all,but one,said that they don't sell the intake seperate from the throtle bodies...Borla Induction was the only one that will sell me one...nice looking piece and 585.00US(I'm in Canada)...also Speedmaster makes an intake with the 120mm bolt pattern for 478.00US
I am wondering,will the FI intakes work with the 48IDAs I have and if other people have used them with what results.
Also has anyone used the Price intake adaptor plates to put a 289(Cobra) intake on a 351w and would it even work given the longer and more misaligned path the charge would have to take...thanks for having a read...Steve