Dolan Pre Cursa / PreCursa / Track Champion

I am fairy sure that Dolan changed the rear at some stage as a friend of mine has no problem with chainline, mine is a "newish" blue frame size 52 from when they came out late last year and the chainstays are wide enough to fit a MTB tyre. This causes the chainstays to be so wide that the three chainsets that I have tried (2x Stronglight 2000 and one Miche Primato) both had the issue of the spider hitting the chainstays with a 42mm or so chainline.

The Miche Primato allows me to get slightly closer to 42mm but it is still about 4mm out currently (on-one hubs) and I have tried several BBs to get it as close as I can without hitting the stays. The frame is a flawed design as far as I can tell and Dolan have been pretty clueless on the phone, nice enough people though and I got through to Terry himself!

I still think the Pre Cursa is an excellent frame at a superb price if you use a hub which gives a wide chainline.

I got my dolan fxe 56cm the other day and I'm having a nightmare finding a crank that'll run the correct chainline and not foul the frame.

I tried the stronglight 2000 with a 107 bb and it fouled the frame I tried a 113mm bb and the chainline was dreadful but the cranks did not foul.

I tried a SRAM omnium crank with the standard bb and its even worse than the stronglight with the original bb! The spider fouls the frame. I'm not sure if I can get a different bb or not but I guess that would wreck the chainline?

Have I got a duff frame or should I just try some different cranks? People seem to have successfully fitted both of the cranks I've tried already. I don't really want to have to get a new wheel with a different chainline.

Any help is appreciated!

TL;DR- which cranks fit a dolan fxe without ruining the chainline?