Quick Question About Buggy Suitability

[Convex]

If its not a specific jogging pram then i would not buy it, you may as well stick with what you have.

if you look on ebay proper joggers come up often.

if you are going to be running on smooth surfaces eg in the paths in the park and especially if you are doing intervals to start with then a normal buggy is probably fine to begin with, and then you can upgrade to a proper jogging pram when you are sure that it works for you.