No worries G, be good to see what it is like when it is done.
I have found some Pioneer kits which look ok, around the £450 mark too :
Pioneer AVX-7300 (7" Wide-Screen In-dash Colour Display)
7-Inch wide TFT active matrix LCD colour display, High quality AGLR (Anti-Glare, Low-Reflection), coating, Fully motorised display with auto dimmer andfree, adjustable viewing angle, PAL/NTSC/SECAM compatible RGB input, AV Bus input, Selectable wide screen, mode, (just/Full/Cinema/Zoom/Normal, Partially removable front panel with warning LED.
http://www.caraudiodiscount.com/acatalog/AVX-P7300.jpg
Pioneer AVD-W6000 (6.5" Widescreen Colour Display)
6.5 inch wide TFT active matrix LCD Colour Display
High quality anti-glare coating, Built in high quality speaker (36mm) with volume control, 2 RCA inputs (PAL/NTSC video & L+R Audio)with S-Video, 1 RGB input for AV Master or Navigation System (with optional cable CD-30 RGB), RCA AV Output (PAL/NTSC Video & L+R Audio), Selectable wide screen, mode, (just/Full/Cinema/Zoom/Normal).