A reasonable A2 and A1 printing service

[Syd]

I am looking to get a couple of a1/a2 prints done of our newborn princess. Taken with a d700 and output in raw-tiff.
I have a 7 colour epson 2880 and am very pleased with that level of quality on 260gm paper - can anyone recommend a reasonable printing service who could match that quality?
Briefly looking online you can pay between £10 and £50 which seems a big difference for 1 print !!!!

 

[big soft moose]

I use Optima Graphics in topsham who can print up to A0, price wise you'd be looking at about £25 for an A2 but that assumes you are providing print ready artwork - if they are going to have to upscale and sort out the colour etc for you then it will be more