[Towertalk] 45G (guyed) vs. SSV (self-supp'g) 70-ft. tower

[ccc@space.mit.edu (Chuck Counselman)]

According to Rohn's spec sheets, either a 45G guyed tower or an SSV 
self-supporting tower can support an antenna having 8 sq.ft. of 
equivalent flat-plate area in 90-mph wind, at the top of a 70-ft. 
tower.

Can anyone give me an estimate of the overall cost of each 
alternative (45G or SSV), considering not only the tower itself but 
also the foundation work, professional erection, and guying (for the 
45G)?

In other words, what's the net cost of doing without guys?

Thanks and 73 de Chuck, W1HIS