Changing valve seals in car

[MOTORHEAD]

After my last few threads re; problems after break-in, and replacing intake gaskets with 1246S-3, my left bank plugs are still oil fouling. I guess I'll try to change them out for the vitons, ( present ones are white, seem very stiff, can't dent them with a fingernail ) eng has about 700mi on it.
Blykins mentioned a valve spring compressor he uses that he found on e-bay, which I believe i found, but it's twice the price brent mentioned, so I can't be certain it's the right one.
I need one that will work in the car, I've tried a couple of them that I borrowed, but the lever orientation was such that the lever would hit the int/carb or the fender/ foot box/ tubing before the spring was compressed enough. So, has any one have on that works in the car that they can post a picture/ dimensions of ???

Thanks,
Ted