There are lots of things that you need to consider before printing. You can approach any professional for getting the job done, but to have quality results you need to choose the printing company carefully.
If you are looking for digital printing of your plan then you need to approach the professional that has good experience and who uses latest equipments for printing. The ink also matters when it comes to quality of the printing. So, you can ensure that the company is using superior quality ink for printing.
Many printing companies also offer mounting service for lamination. This service is available in large sizes also. If you want it on gator board of 5mm, you can get it in no time.
All you need to do is to search on the internet and you will get the list of the companies to approach.
For more details you can visit: http://www.creffielddigitalprint.com.au/