I'm like you, and currently building a router table using a triton router.
I ended up getting a mof001 for £169 from screwfix and an aluminium plate for £24 from yandles (they have the blank plate (search for 881268) for that price - the picture on the website shows screw holes, but it definitely doesnt come with any), or for £75 the same plate with 5 holes drilled for triton).
I'm just waiting for the screws to arrive which i brought off ebay for £3, then ill build the table and assemble it all.
I found toolstation had the 1/2 collect going for £13 is too whereas other places were closer to £20
For a fence I am going to try and use is a rockler fence designed for a drill press that yandles are selling for £20 (search for 779851)
To raise it, I am going to initially do it manually using the tool that triton gives in the box, but i plan to work on some electronics and a servo to control it raising up and down over christmas break, aiming for total cost to be under £30
I'll be interested to see how your setup progresses and ill share mine once i start to make some progress