Combi boilers and wood stove back boilers?

I want to phase the upgrading of my heating system in a 3 bed semi.

First I want to have installed a new combi to heat a small underfloor  heating system, and 3 radiators, and our tap hot water.

At a later date (2 – 5 years) I may want to purchase a wood burning stove with a back boiler, and have connected into the heating system, via a storage tank. I may want solar panels also to feed in. Is there a combi that is compatible for both  scenarios? As the wood back boiler needs a vented system, and the combi is pressurized. I don’t want to have to buy and install the storage tank at the beginning, as this will be done in phase 2, for financial reasons.