Pension valuation for Pension sharing Order

Here's a hopeful question!

Are there any rough and ready on line calculators to get a reasonable estimate of the valuation of a company pension pot when the following is known?

1. Age of pensioner.
2. Current annual pension payment and breakdown of the payment.
3. Age of spouse.
4. Spouse pension payment in event of pensioner's death.
5. Pension increase rate as a percentage of RPI.

To get the numbers from my company pension scheme is v. expensive. I just need a ball park figure at the moment.

Here's hoping someone will know, or even tell me this is impossible