Here are some Timelys that might be in the $1500 or less range that I would recommend. There's not much in the market lately as they all seem to be locked up in personal collections.....You should get the Gerber Photo journals if you are remotely serious about exploring GA Timely covers. I studied them like SAT prep back in the day and look where it got me
All Select 2 - might be able to get an entry level 1.0 for $1500 range (a "prime" Cap cover)
All Select 3 - might be had in a 2.0 (best "little" book cover in the run for me)
All Winners 7-12 (all decent Cap and Company covers)
Cap 33 maybe in a 1.0 - 1.5 (the best Cap cover in the later 26-39 run for me)
Human Torch 8 - I remember when $1500 could get you a FN copy good luck now...it was around $400-$500 a point for years, but I think a 1.5 raw sold on HA last weekend for $2200 range....the poor man's Marvel Mystery 9, and a titanic "in your face" Torch pose
Marvel Mystery 15, 36 - both probably in 2.0 range (I always thought the 15 and 36 were microcosms or each other with the under water tunnel)
Sub-Mariner Comics 6 - 1.5 to 2.0 range
USA Comics 8 - Might be able to barely squeeze in a 1.0, these were pushing $2k entry level last I saw....my favorite in the Cap USA cover run (yes, I like it better than the 7)
USA 10 - 1.0 - 1.5 range (big, front and center Cap war cry cover)