im a graduate student specializing in LC VCOs .. i can help u alot and u can contact me with ur detailed problems ..
any way imgonna give u some general hints ..
1 . try adding a low pass filter to the current source path to reduce ur noise ..
2. try getting ur freq with capacitor of low values , the lowest ur valuest the highest the q
3. find the highest Q inductor with your inductor finder in your library
4. use low W transistors if u want to be able to tune ur capacitors well (big W transistors capacitance will dominate if they r comparable to ur varactors)
not sure if u r using an ideal conductor or not but it looks like the ideal conductor of analogLib ! anyway if its ideal ur circuit cant work properly use an inductor from ur library ..
hope this is helpful for now and feel free to ask any further questions