It all hinges on the workload of the shop that day. I know they will do all they can to try to help you out. Might be a good idea to reach out to the shop you are planning on going to and speaking to a technician that may be able to make a commitment, I know I try to accommodate as many folks as I can.
Submit photos and a description of your PC to our build showcase
See other custom PC builds and get some ideas for what can be done
Services starting at $149.99