Re: I want handling !
I agree with 'mongrelEB', in fact, I wouldn't bother taking it to a suspension shop at all.
Suspension is not rocket science, and with the right product, a few basic tools and 1/2 days work, you'll have your car handling like a dream.
I'd keep the Lovells as they are typically a very good single rate spring (which is good IMO).
If you're on a budget, grab some Monroe GT gas shocks, or if you have plenty to spare grab some Bilstien or Koni shocks.
Replace all rubber bushes with polyurethane. Throw on a 30mm front sway bar.
And whatever you do, don't put on a ratchet type camber kit, only use a shim type.
Give it 1/2 deg negative camber, between 4 and 6 deg positive castor and 1mm toe in.
I would also lean towards at least 17" rims with 235/45/17 tires as a minimum and anything up to 255/40/17 (on the rear). The benefits of a low profile / stiff sidewalled tire easily outweighs the weight disadvantage.
Your car will feel like a different machine after that and will easily be able to keep up with much more sporty cars.
4L I6, naturally aspirated producing 173.5rwkw.
14.410 @ 96.49mph with street radials.
What's that?..... Did I hear you say TQE power?