The Super Tiger 45 would be a lot of engine for this plane but you should be able to fly it just fine

According to the Tower site the original Kit type Skylark 56 was brought out in 1978. So the design has been around a while. The design was somewhat derived from the Falcon 56 of the late 60's

A Sr Falcon would be a better choice for your ST 45
http://www3.towerhobbies.com/cgi-bin...&I=LXHUT9&P=ML