Good choice, thats a nice cab , I saw that myself and was tempted , but I’ve already got quite a few cabs, including an Ashdown 115 deep bass , their after sales service is very good too.
Spring toggles, they come in all different sizes,https://www.diy.com/departments/diall-spring-toggle-l-90mm-dia-14mm-pack-of-2/1511941_BQ.prd?storeId={store_code}&ds_rl=1272379&gclid=EAIaIQobChMIrIGSvPeL6AIVh7HtCh1jlgE8EAQYBSABEgJ-mfD_BwE&gclsrc=aw.ds
I don’t think it’s so easy now Kiwi , at one time there were old houses everywhere, you don’t see it so much now, developer friends of mine don’t bother to refurbish anything, they just knock down and build new flats.