Don't waste your time and money buying some instrument time. If you have kept up with the books and and are diligent in your scan even if flying vfr you should not have a problem. When you fly jets, it doesnt really matter if you are ifr or vfr, your scan should still be paramount as you reference instruments the moment you break ground. Now of course having actual time, and doing approaches to mins over a career establishes experience, but the point is that at your specific point in your short career thus far, with the regionals lowering their mins and having a hard time dealing with attrition, I believe you are sitting good where you are. During the Q&A session, your work ethic and study habits will become apparant ifr current or not.

really helpful for people who have no jet time is a turbine transition manual. do a google search and youll find 2 books out there! they will do a good job of prepping a newbie for a first jet ground school!

best of luck!