You can get good damage and good compounding ability if you get mastered Heavy Carrier and get WT equips (Premium Pocket compounded with Goma Mufflers, Balloon, etc) and get Fear Bag in your second job. You can even better damage/survivability if you don't mind walking a little. Just get max WT equips, load up on potions to 100%, and then switch your WT equips to HP,DP,LK,DA,etc equips after you do that (you'll be over 100% WT). Of course it's a given that you'll be using LK equips while compounding.
BUT, if you really only want to make one Fox, I suggest you make a combination of DA and LK (5DA points per 3 LK points maybe?). Putting 3 points LK per 5 DA, you'd be getting 11LK per 32 levels compared to a DA fox who puts all DA who gets 1LK per 4 levels while getting 13DA per 32 levels compared to a fox who puts all DA who gets 1 DA per 2 levels. This would mean would mean at level 65, you'd have the compounding ability of a level 89, while having the strength of a 47 (compound like someone that's 24 levels higher than you, while doing the damage of someone 18 levels below you). Of course, you do know the smart thing to do in this build would be to go all DA for 46 levels and then go all LK after you get there. :P
Of course, a pure LK build would mean at level 65 you compound like a level 129 while doing the damage of a 33.
BUT, since you can go all DA for the early levels, you can make a combination melee/forger fox for a first account.
This was all calculated (probably wrongly) not taking Lucky Seven and Sixth Sense into account. Since these skills are based on percentages, the stats grow exponentially as you get higher. Meh, too lazy to calculate that.
BUT, keep in mind that a Fox only has an advantage over Lions in compounding because they get Lucky Day, which is a stackable
party LK buff. SO, if you have a good Fox buddy who has Lucky Day, I heavily suggest you make an LK Lion instead. Why? Lions have a skill that feeds off LK for damage in second job. So you can just make a party with your Fox buddy when you compound. You'll be able to train alone, but rely on someone when compounding (not like you won't get excellent results by yourself anyways). So basically, with a Fox or a Lion alone, a Fox would be better at compounding, but the Lion better at damage, while if a Fox and a Lion work together, they'll have the
same compounding ability, and the Lion does
even more damage.
I'm gonna move this to the original post because it's an important note I left out for anyone making an LK Fox.
BTW, I still have no idea why you're quoting me. :P