I am relatively new to the forum and want to get stuck into my first build. I have some 'newbie' questions that I am sure have all been asked before at some time or another, so apologies in advance if this is the case, so here goes:
Wire wheels
Whats the largest set I can use with stock suspension, that are readily available and have that cool spinner, for me the larger the better and don't care if low profile or larger profile, just wide, possibly wider on rear if it takes them?
Exhaust
On my Z3 3.0i there are 2 pipes running pretty much down the centre of the car then around 3/4 way along they divert off to one side into a large box (baffles?) and then I have 2 tailpipes sticking out on one side. To get an exhaust coming out both sides I assume one of the pipes will have to be re-routed, however where the 'new' pipe needs to come out there is the small matter of a large spare wheel holder, so I assume this has to go and appropriate mounts for a new exhaust are needed, Again I assume this will be a custom job? the 3.0i is a V6 and has a sort of gurgle currently and I want to know others view on this and what sound comes out with modification?
Hood
I want to keep my electric hood and have a convertible, I have seen the pictures of the stoneleigh red concept, can I fit a stock BMW hard top to this setup?
Insurance
List of companies that will insure, when to contact them? what to call it? what level of detail to mention when asked what mods? typical price to get quoted? any useful tips?
Finish of moldings
In what state are they supplied, what level of finishing is required, do they need filling, sanding, polishing, how much and to what level? I want them to fit correctly with need lines and will be plastic wrapping and not painting, so just need smooth finish. For me the less work on this the better as I am sure the panels have good shape from the molds.
Brake/Side vents
These look like they are integrated into the molds or are they detachable?
fuel cap re-position
Are there any limitations on where this can get moved to? it would be great to get it on top of rear wheel arch with one of the old filler caps
Transporting moldings
What size van do I need? how to keep them from getting destroyed/damaged in transit?
There must be something I have forgot from the list above
Any comments appreciated.

Thanks.
, there are definitely 2 pipes under there: