CAMO does all kinds of custom aluminum work. my car will be getting a full intercooler and piping job done there by the end of february. also a 2.5 or 3" brushed stainless steel downpipe.
Personally, I use a top/down Spearco core with Spearco tanks. Super low pressure drop, incredible flow, great response. It's the same core as used with the Procharger kit on the Stangs. Good enough for 1000HP supercharged Stangs, good enough for rice rockets like yours and mine!
They won't bend aluminium, but they will solder pre-bent aluminium pipes (as 99.9% of the specialised shops will do).
Soldering aluminium is TRICKY! Ben has been practicing a lot on all kind of cars (Besner, mine, that RMR GOlf, etc...) and he is becoming EXCELLENT at it.
Yeah, I might sound like a lap dog or something, but it's true, what can I say...