Help! Is this affordable to fix?

KatieS

So I am in the process of buying a 1930s semi and just had the homebuyers report back. Now, I correctly own a Victorian terrace so am not afraid of damp/ cracks etc but the survey has thrown up a few large issues and I really need to know if they are as bad as they sound/expensive to fix. Here goes:

"The current owners initiated an insurance enquiry in relation to cracks noted to the internal landing partition wall between the gable end and bedroom. This was noted to be long standing in nature and at risk of thermal displacement between the masonry sections."
What does this mean? How much to correct? Is it bad?

Cracks above the entrance archway were also,repaired with a patch repair scheme initiated. Helifix or rods were installed within the mortar bed joints." Is this an issue?

Am upgraded lintel,is also required for,above the rear patio doors given localised cracks/deflection. Is this expensive?

An insulation panel under the stairs is believed to contain asbestos.we were planning to put a toilet under the stairs so this would be an issue. Is this expensive to deal with?

Thanks all-any advice on what to do next/ how to proceed would really help! Should I try and get money knocked off- if so how much or should I send someone else round to have a look more in depth?