you are right, its basically the same as the fighter, you can orientate on these guides or the melee general ones here:
http://forums.d2jsp.org/index.php?showtopic=18560908&f=272For the mana question this should help you:
B. Exact Life/Mana @ Levels Based On Base Stat
1. Base Chart(Not Pure Stat) Ie. Magical Int Starting Base Stat = 60(70 if you put all 10 in)
http://img65.imageshack.us/img65/5341/lsvitchartab1.png
2. Pure Vit/Int Build Calculations
Step 1. Find your base stat (your vit/int @ lvl 1 after stats used)
Step 2. Look At Chart What You Would Have With a Non Pure Vit/Int Build
Step 3. Take That Value And Add It To The Following Number That Matches The Level Your Iso Stats
Level 1 = +0
Level 10 = +45
Level 20 = +190
Level 30 = +435
Level 40 = +780
Level 50 = +1225
Level 60 = +1770
Level 70 = +2415