Have to agree with Redeye here.
The IR subjects can be taken if your 3 years runs out. It's seven exams and structured slightly more towards IR stuff. I'm in the middle of them right now having let my CPL sit on the shelf for 3 years without getting the IR. Not a big deal really. More of an inconvenience than anything else. It's good to refresh the old grey stuff. The ATPL is a harder option but do you really require an ATPL? Unless you do the multi engine/IR/MCC etc you'll only really need the privileges of the CPL anyway.