im gona pick ya brains bout dem floors m8
remember blue bird vw heaters 4 ton but best 4 ton u will
ever spend m8 100% justin mark my words 
Hiya gav mate....
Just giz a bell anytime bud....easy to do also,bit messy fitting it,but worth it.........
I'v got step by step pic's on this site or another site ,fitting it,ill have a look for them when ya intrested dude
i will let ya know when i get that heater sorted man
Take care gav
Kindest regards
Justin